I hear this question a lot, and I know you will hear this answer a lot. You have your everyday personality that makes others laugh. That's what you have to use with him! I'll gives you an example when I was trying to get with this one girl she was herself around me. Which attracted me to her even more. It would be little stuff that you wouldn't think would attract someone, but it does. I found it cut and only made me smile and want to be with her even more.
Use that great personality you already have to attract him, Nothing else; it can't be fake or it won't work!