'Come' is my main word for 'get over here now'. Variations are 'this way', meaning 'stop going in that direction and follow me, but we aren't stopping', usually used while hiking and getting them to come down the right trail when they have guessed wrong at an intersection. Occasionally used to call them off something, since it has a huge history of fun reinforcement and is therefore a favorite command for both. 'Collar' is their most restricting recall cue, meaning 'get right over here and put your collar in my outstretched hand'. Mostly used with Gusto, the king of keep away.