Just be yourself.. Because if your not and you decide to act the way you are he might not like who you are..
You have to learn to be alright with you. If your boyfriend likes it or not isn't as important as if you are keeping it real with yourself. Look in the mirror. That is your best friend.
Be yourself don't try to be someone your not. Look beautiful and always look the person in the eyes when talking. This tip also comes in handy to see if a person likes you or not they will look them straight in the eyes if they like you or they won't if they don't!