Comedy Makes You More Attractive

For men at least:

Producing humor might function as a fitness indicator associated with greater desirability during dating selection. A male confederate in a bar was instructed to tell (or not tell) funny jokes to two other male confederates. A few minutes later, when the second of two male confederates left, the first male confederate asked a female who was near his table and who had heard the funny jokes for her phone number. The previous expression of humor was associated with greater compliance with the male confederate's request and with a higher positive evaluation.

And don't forget, doing improv also makes you smarter, happier, friendlier, supportive, adventurous, and more able to learn.