I don't know about the rest of you men, but I always reach inside my tighty whities and stimulate my penis after I strip down for a physical. I try my best to make my penis fill out and look bigger before the doctor comes in to start the exam. Unfortunately, my anxiety keeps it small and stimulating my penis does not help at all but I continue to try this maneuver to attempt to reduce the embarrassment I will feel when the examiner gets a look at it.