When you read this, you will think it's a joke. But you are wrong; millions of people around the world have seen stickmen (not shadowmen). Their walk has been described as a lolloping gait, and some reports have noticed them to be scared when seen.
Stickmen look like any other stickman: one round head, and body, arms and legs made with stripes. Sometimes, they are reported to wear top hats! They are completely two-dimensional, without facial features.