does anybody know where I can find an affection guide?

[dynastystar]

I'm trying to find a guide that tells me what I can do to increase each characters' affection(I'm trying to build my affection with Lulu)

[Casurin]

pretty much any guide or even the various FF wikis have that information.
basically: fight with her in party, heal her first, beat the crap out of the other characters.

[ShinkuTear]

One simple way to raise affection, is to have Tidus heal that character. Get into a battle(preferably an easy one), have that character attack themself. Have Tidus use Potions or healing spells on them.

IIRC you get 1 affection point each time Tidus restores HP to that character, so doing this long enough will make Lulu have highest affection.

[Chakes]

http://finalfantasy.wikia.com/wiki/Affection_mechanics

there you go.

[Fryman]

Originally posted by ShinkuTear:

One simple way to raise affection, is to have Tidus heal that character. Get into a battle(preferably an easy one), have that character attack themself. Have Tidus use Potions or healing spells on them.

IIRC you get 1 affection point each time Tidus restores HP to that character, so doing this long enough will make Lulu have highest affection.

Pretty much this. Also whenever there's a bit with everyone standing around, like when you're waiting for Yuna to get a new Aeon, the first person you talk to gets affection points.