Multiplayer Perks
Perks are passive enhancements, and you get one slot in your Profile Sets for them. These perks are always in effect and there are currently two perks available through leveling.
Enhanced Autobash
Awarded when they player reaches level 15. This ability increases the number of characters you can run into while in high profile without stumbling. This is useful when you're in chase or pursuit mode and any slow down could result in failure. You can always just use the unarmed hand button to shove people as you're running, but this perk will help you out if you can't get to it in time.
Blender
Awarded when they player reaches level 19. The Blender perk changes one character in a group to your character skin when you blend in with them, unless one of them already has the same skin as you. This is a good way to quickly fool a pursuer you know is close to you without wasting one of your abilities to disguise yourself or morph the whole group.