Hey Scan,
When you get a chance: grab a flight down to Mexico City, ride the subways during rush hour when men are restricted to the last 10 cars and women and children only are allowed in the front cars.
Wait until the train goes around curves at like 80 miles an hour and all the guys start pressing into each other: it's dicks into butts, dicks into hips with one hand on a pole or ceiling strap -- the other buried below the gaze of the crowd.
A handy hint: the last car of each train is the traditional "gay car" ! Hard-ons abound during rush hour
!
Cruzing hints: the middle button on the pants being open is still usually a signal as well as zippers only halfway up.
Also, many guys have mastered only hanging on by using the lower part of the pole...with their knuckles constantly bumping into your dick.
When they start feeling you and you feel back....you will find they have usually opened their zips already and are free-balling.
Yes rush hour is wild on the men-only part of the Metro -- but, good manners still prevail: when guys come between stops -- they try to aim it down to the floor --not onto someone's pants !