I’m known to take my cock out when I’m bored. All my friends have seen it. It’s like a party trick. Bored: flops it out: people go “Goddamn you are huge” and I feel not so bored any more. Actually, to tell you the truth, I’ve done it at work too, so a few of my colleagues have seen it as well.
It’s a combination of being bored and proud I guess.