Humor goes a long way with chicks.
It takes them out of their socially conditioned minds, and allows them to ride their light pleasurable feelings.
This is what you want, cause those same pleasurable feelings want to bone!
But...... its not the end all!
Other qualites produce other equally seductive feelings/responses.
Imagine other ladies-men.
James Dean for example. He wasn't cracking jokes. He was the rebel bad-boy. Wild, Free, Dark, Mysterious, Dangerous!
Such other qualities are definetly equally powerful.
Its all how you respond to what the moment demands.
Don't limit your Key to one quality... it would be terribly naive, and ignorant to your "game." Think back and try to figure which qualities your character has succesfully and naturally been, in situations where you created attraction. Reflect on those... and how specifically you related them. What was their effect? Learn to bring such mannerisms through yourself more, with other women. Get creative.
This will also allow you to see where your "game" lacks, in regard to certain qualities. Say... if your not as "mysterious" as you are "funny." You might want to try incorporating some of these qualities in your relating. See how it differs your response from women. Etc etc etc.
Its all feedback.
You can only win, and refine!
Peace'