You will need to go up to a random dude (make sure a enemy is following you) then, go behind your random dude and get in the dude's way and make it look like your facing the dude. Then the enemy will either go right next to the random dude or go behind it. Make sure you are close to your enemy so it can try to hit you. But instead it would hit the random dude. Boom!

Sometimes when your enemy hits the random dude, it will try to attack your enemy, helping you defeat your enemy.