That's one thing a man does if you ever see his hands reaching the crotch area.
Especially when wearing jeans, adjustment is necessary. A man will never be comfortable until proper adjustment is made, i.e. the penis is not in a good position.
1. Swiftly move your hands to the crotch area.
2. Push your penis from the sides.
3. Once you reach a good resting position, your penis should be comfortable.
P.S. This is especially important if one has a mooseknuckle
*man grabs his crotch*
Woman: What are you doing?!
Woman: Are you masturbating?
Man: Adjustment. Hey you just looked at my penis llololololol!!!11!!oneone!!!!!!!!!eleven!!