I like to walk around with my briefs pulled to one side under my
jeans, leaving my dick dangling at one side. This leaves it exposed
to the rough material of the jeans and the friction keeps me high
when I walk.
When there is nobody else around at night I will sometimes unzip
and let it get a breathe of fresh air. Since some people believe
oxygen is good for the skin, perhaps letting it get some
ventilation will be good for its complexion too.
Of course, if someone is walking nearby I will have to push it back
in, and zip up again if necessary. This adds to the excitement, but
I don't take it out and show it.