A1
: 
Depends on which girl you are trying to get, some methods are especially effective on one girl and others don't work at all.
Here's a general list
>> Communication - Talk to your girl everyday
>> Talk to them during festivals
>> Presenting them with gifts
>> Involving them in romantic events
(such as - Star-gazing festival)
>> Give them gifts on their birthday
NOTE!
You won't have to work on your girl over the year, if you prefer to make money first. There is one day in which you can boost ANY girls heart level to 10, with simply money and a kitchen.
This is the SPRING FESTIVAL. Once you have the cash, go to Neumann's shop and purchase necessary ingredients to make a few dozens of cookies.
On the day of the Spring Festival, bombard the lucky girl with ALL the cookies and her Love Points will skyrocket and if you have made enough, it should reach 10!
(Yes, I have tried, even if you give them all to her in one day!)
Bianca
A wealthy, solitary girl, Bianca de Sainte-Coquille lives with her father Jasper. Their mansion is to the east of the Plaza entrance.
Birthday - Summer 08
Wife Gift - Cake
Favorite Gift - None
Liked Gift - None
Disliked Gift - None
Raising Love Points
As you can see Bianca, does not appreciate gifts in which you may present her, because she can pretty much buy whatever she wants. What is most important to her in conversation. She views herself differently from the rest of the villagers and maybe rude and impotent at first, but opens up to you as you become friends.
>> Talk to her everyday especially during festivals
(such as - Beach Open Day and Spring Festival)
>> Invite her to romantic events
(such as - Moonlit Eve Date and Scared Night)
>> The only time she will except a gift, is during Spring
festival, where you may give her some cookies.
Felicity
Daughter of the mayor, she is polite and well-raised, she respects the land and is quite intelligent and hard working, a positive girl. But she is cursed with sickness that cannot be healed. As you move on in the story, you can change that.
Birthday - Fall 05
Wife Gift - Choco. Cookies
Favorite Gift - Eggplant Curd
Liked Gifts - Toast, Pizza, Jam Roll, Cheesecake, Butter roll
Disliked Gifts - None
Raising Love Points
Felicity's love points may be a little bit more difficult to raise than the other girls. Nonetheless the Spring Festival method still works well.
But daily gifts have no effect on her either! The only times when she would appreciate gifts are during her birthday, spring festival and the harvest festival.
Remember talking to her during Spring Festival, Beach Open Day, Moonlit Eve and Sacred Night will drastically increase her LP.
Lara
Nurse at the local clinic, she is sensible and intelligent. With a strong sense of justice and need to keep everyone healthy, she works alongside Edward the Doctor and continually asks you to take care of yourself.
Birthday - Winter 01
Wife Gift - Medical Herb
Favorite Gift - Choco. Cookies
Liked Gifts - Strawberry, Pancakes, Jams, Donuts, French
toast.
Disliked Gifts - None
Finally a normal girl. Lara liked to receive daily gifts! But most of her liked gifts are cooked items, in which you won't be able to obtain early in the game, luckily your first cave (carmite) is a spring cave! This way you can grow strawberries all year long and woo Rosetta and Lara at the same time!
Talk to her during Spring Festival, Beach Open Day and Harvest festival. Invite her to Moonlite Eve and visit during Sacred Night, and she's all yours.
Lynette
Originally your enemy, she tried to destroy Kardia as an order from her Captain. As her plan failed, she was sentenced to death, but saved by you, she now lives in Kardia. A bit of a loner, but generally nice and thoughtful girl, she sees Kardia as a peaceful village, she could not understand before.
Birthday - Fall 25
Wife Gift - Apple Pie
Favorite Gift - 4 Leaf Clover
Liked Gifts - L.Yogurt, Bamboo Sprouts
Disliked Gifts - Strawberries
Raising Love Points
After Lynette comes to Kardia, she is very easy to please, as an outcast, she'll appreciate every day communication as well as gifts giving and visiting during festivals. She is relatively easy to get.
Mei
Birthday - Fall 10
Wife Gift - Baked Rice balls
Favorite Gift - Baked Rice balls
Liked Gifts - Lobster, Lamp Fish, Lover Snapper, any fish
higher than level 26
Disliked Gifts - None
Raising Love Points
Although she has liked and disliked gifts, most of them mean nothing to her. Instead communication during festivals and involving her in romantic events will increase her love points.
But the main love raising factor for Mei is Fishing Day, (Fall 29) Hardly any villagers participate or even know of this event at all. Meet her on the pier at the beach on this day, and give her the max number of fish on this day, which is 10.
Melody
Odd, but nonetheless, happy and cheerful little witch, Melody manages the hot spring. Of course she's not really a witch, but she's greatly fascinated by magic and associates with Sharron near the Kasimir Ruins. She is an orphan.
Birthday - Spring 11
Wife Gift - Curry Noodle
Favorite Gift - Relax Tea
Liked Gifts - Colored/wild Grass (red, blue, green etc.)
Raising Love Points
Although she thanks you for giving her a gift regularly, she warns you that you won't get her heart by simply giving her material comfort.
What she likes best is you taking a bath at the bath house everyday! This will increase her love points.
Invite on dates to Moonlit eve and spend time with her on Sacred Night helps a lot.
Mist
Oh, this ones odd, and I'm sure everyone familiar with her. But she has her charms too! Sweet but clueless at times, her flowing white hair makes her stand out in the crowd. Guiding and fighting with you throughout the story, she is supposedly the ideal wife. If you marry her you'll receive a range of odd lunch choices.
Birthday - Fall 01
Wife Gift - Tempura Udon (Where am I gonna put it?)
Tomato Seed (It ain't gonna grow before
lunch)
Flour (What? You want me to cook?)
Sardine (At least slice it up and make sashimi...)
Favorite Gift - Emery Flower
Liked Gifts - Radish, Baked Apple, 4-leaf clover, Fried
Udon, Cake
Disliked Gifts - None
Raising Love Points
As Mist enjoys daily gifts and conversation, she is quite easy to get. As her favorite gift is an emery flower, which you cannot obtain until later in the game, the easiest alternative is radish! Plant lots in carmite cave at the beginning of the game and give one to her everyday.
As usual talk to her during festivals and involve her in romantic events, this practically works from every girl! And don't forget the Spring Festival Method~
Birthday Present from Mist = Huge Bonus Love Points
Rosetta
Sassy girl with an attitude, she won't hesitate to tell you what she thinks. Working at the general store with her father Jean, she is a bit of a tomboy and bossy at times. She is the opposite of Mist and view her as a rival.
Birthday - Fall 21
Wife Gift - Corn on a Cob
Favorite Gift - Baked Potato
Like Gifts - Corn on a Cob, Hot Milk, Hot Chocolate,
Strawberry, Omelet
Disliked Gifts - None
Raising Love Points
Classic Harvest Moon candidate, you can woo this one, simply by giving daily gifts and contributing in daily conversations and involvement in festivals.
Sharron
The mysterious maiden, living outside the ruins. She rarely interacts with any of the villagers except Melody and doesn't contribute to festivals. She is fascinated by magic and her past is a mystery itself.
Birthday - Winter 19
Wife Gift - Donuts
Favorite Gift - Relax Tea Leaves
Liked Gift - Fire Crystal, Wind Crystal, Water Crystal
Disliked Gifts - None
Raising Love Points
Sharron is easy to get. Once you unlock clemens cave, mine for fire crystals to increase her love points then talk to her everyday!
Tabatha
The kind and gentle elf, works for Bianca and Jasper as a maid in the mansion, north of town. She is dedicated and seeks a connection between humans and mythical creatures. And you might just be the one who can! She loves cooking and cleaning, but above all you taking care of your monsters!
Birthday - Fall 12
Wife Gift - Corn
Favorite Gift - Rice Porridge
Liked Gifts - Apple, Grape, 4-leaf cover, flour, mixed juice
Mixed Ole
Disliked Gifts - None
Raising Love points
Tabatha likes gifts and conversation, but the main raising factor for this special girl is by you collecting and caring for your monsters. As you do this, her LP will increase.
Tori
The shy and gentle, daughter sister of Zavier, she is the exact opposite! Educated and book-loving, you'll find her in the library most of the time. She enjoys a dip at the Hot Springs and through her bashfulness, still manages to wish for your safety.
Birthday - Winter 26
Wife Gift - Baked Apple
Favorite Gift - Pump. Pudding
Like Gift - Strawberry, Grape, Vegetable Juice, Vegetable Ole, Pink Cat, Pudding, L.Cheese
Raising Love Points
Believing in her prince in shining amour, Tori appreciates you reading books in the library, so make sure you read everyday! Also presenting her with gifts will increase her LP, as well as conversation. A believer of romantic books, she obviously loves romantic events, asking her out, might be an idea.
So no matter which girl you choose, the info listed above should help you get them the fastest way possible! Hope I helped~