Impressing a man

If you're out-going, act out-going.
If you're the shy/quite/innocent type. Be that way.
Forget what you know about guys. Not all of them like beer and rugby. And also, not all of them like Perl and Star Wars.

This can be applied to how to impress a woman as well.

For more specific woman things (IMHO):

• Don't wear too much make-up. I want to see you beautiful face. Not the make-up.
• Guys do like to see skin... but not too much. Show off a bit, but leave some for the bedroom.
• Wear nice clothes (and underwear/lingerie).
• If you have long hair, play with it a bit.
• Smile. Make cute giggles (but refer to my first point, don't be fake).