Pay her a sincere compliment
One thing you should say when you're around her is a nice, genuine compliment. It's not as difficult as it seems! Here's what to do:
>>Think of what you like best about her. It could be her smile, her laugh, her intelligence — whatever strikes you as her best quality. (The only caveat to this is that you should not compliment her on any physical traits except her eyes or her smile. She might have a great figure, but now's not the time.)
>>Do it semi-privately. You don't have to get her completely alone to pay her a compliment, but try not to do it with all of her friends or your friends listening closely. You could also pull it off in a text or instant message.
>>Keep it short and sweet. No need to wax poetic for three or four minutes on her best qualities. A simple one-liner will do.
>>Pay attention to how you word it. Instead of saying 'That's a pretty dress' or 'I like your outfit,' say 'You look really great in that dress.' Compliment the woman, not the article of clothing!
>>Get the body language right. Smile! Keep eye contact while you say it, too.