TURN by gently pulling the leash in the direction of the turn

You can also gently steer your dog into a turn

STOP by gradually slowing down as you gently tighten up the leash

SIT by gently pulling up on the leash as you give the Sit command. Give the leash some slack when the dog sits

Combine STOP and SIT into an "AUTO-SIT" so your dog automatically sits when you stop!