For rewards, I use food, toys, a clicker, touch [e.g. petting], and verbal praise. To make corrections, I use my voice [e.g. a calm but firm “no”], a quick but pain-free snap of the leash [when the dog is on leash], or physical removal of the dog when correction or redirection is not stopping the dog’s unwanted behavior [e.g. nipping or biting during play with another dog].