run your fingers through her hair. play along when she says shes mad at you. let her roll her eyes and fuss, then pick her up and kiss her. hold her hand while you talk. buy her flowers. admit when you're jealous. tell her she is beautiful. open the door for her. have bummy nights on the couch cuddling and watching old movies. kiss away her tears. ask her to slow dance with you in her living room. kiss her forehead after she falls asleep in your arms. let her wear your clothes. pick her over all the other girls you hang out with. take silly pictures with her. play board games with her. kiss her in the pouring rain. admit that she is your weakness. write her letters. admit that you've fallen in love with her, and mean it.