What would you do if you meet your celebrity crush in person?

Well i'll edit this answer soon because i'll either meet him on the 18th or the 21st of this month :D

Although part of me would really love to meet any of the many celebs I have had a crush on throughout the years, I think in reality, I would not want to actually participate in too much of a conversation - I would rather just listen to questions - add my 2 cents in. I would be afraid that I would get too tongue tied and make a fool of myself, or worse say something that would offend my crush. Basically - my heart wants more than my head cautions.