With all the time I spend in my car, I tend to get bored and try to find ways to entertain myself. This may seem silly or not very worthwhile but I think it can translate into being more confident in all aspects of pick up. When I drive, I try to lock eye contact with every girl I see. When it happens, I smile, give a wave or a wink. Usually they get confused or flustered which in itself is entertaining.

The reason why I think this may be helpful is it teaches you that quick social confrontations have no ramifications whatsoever. Although you're in the sanctity of your car (I drive a piece of shit 95 Acura Integra) I believe this can help break the barrier of inner game and pick up anxiety. The best part is, if it is a really awkward exchange, you just drive away! And it makes driving more interesting. Drive safe!