How to make a woman happy?
Don't play her. Treat her like you actually want to be with her. Kiss her in front of your friends. Hug her from behind. Grab her hand when you are walking by her. Kiss her when she's mad. Cuddle with her. Let her know you love her. Tell her how much she means to you. Tell her how you feel. Don't deny your jealousy. Don't be an asshole. Call her when she's upset and tell her you love her and that everything will be okay. Let her know that you want her to be yours.