That takes alot of practice and balance to not hurt like hell.
In a documentary about ninjas they brought up this tactic for walking silently.Also, keep your against the edges of the walls, especially when walking through a hallway. This will help keep the floor from creaking.
But what if your foreskin gets retracted midway through and it won't go back up?
i'd be lying if i said i didn't try to walk like that after seeing the picture, lmfao.
do the heel/ toe method used by the military