What is sexy to a guy?

To a guy... What is really sexy? I mean really? short hair, long hair, what color hair? Body type? ...what?

Physically, all guys like something different.

Some things I'm sure most, if not all guys all like would be cleanliness, good sense of humor, and confidence.

Its about whats on the inside - confidence is usually quite sexy to a male.

you can not singularly difine what a guy thinks is sexy. each guy will have a different idea to what he regards as sexy. so if your worried about wheather or not you are sexy, well dont! because to one guy out there you will be. what one guys sees as being sexy, may be a complete turn off to another, and vise versa.
so just be confident as who you are and in your looks, and guys will see that.