Men only! How would YOU act when you are 40 and a 22 year old has a crush on you!?

She's pretty, popular, in Grad school and sensible. I secretly admire my this man of 40. He knows I have a thing for him and seems to stare at me a lot. But, I so want to go over and lay a peck of kiss on his cheek one day. Or buy him a big pooh bear and flowers for his birthday! By the way, we have not spoken much. What do you think he is thinking?