Well, these are quite useless. Try to avoid using them, unless you run out of ammo and have to.
Fists. Good for breaking breakable stuff, such as crates or windows. Default key: 1.
1 - Fists - While your fist can do some serious damage, they're not suggested. This game follows the typical style of not making the close combat weapon very useful. They hurt more than the pistol, but good luck on doing it effectively.
1-- Bare Hands Run out of ammo? Here's your only resort. Actually, as far as melee fighting goes, bare hands aren't too bad. They actually deal damage faster than the Magnum, but then again, you usually get shot a lot while beating the hell out of someone.