I agree with kf5nd for the most part.

Presentation is 99% of the game. If you use a bicycle for your transportation you need to let people know that you use it out of choice, not necessity. Yes, you could have a car if you wanted one, but you choose not to. The lack of a car is suggesting poverty, you need to get around that by showing off your non-looser status in other ways, namely your appearance.

Get a good haircut. Get some good clothes. Go to a salon and get everything scrubbed down. Look at fashion magazines. Spend the $50 you didn't put into the gas tank on a new shirt... that fits.

I'd take kf5nd's suggestions to heart. If you get some nice clothes and look well put together then people will ignore the lack of a driver's license.

If you wear tight jeans and have a hard ass, you're already halfway home. Try riding single speed for a while. Uphill. Feel the burn. You'll thank yourself for it later.

And look in the right place. Cicyling clubs, environmental groups, and raves/phish concerts are going to be far more productive in getting your groove thing on than going out to sports bars.