Working on "check ins" with your dog, is essential in building a reliable recall.
As you can see, Marley keeps checking in to see where I am; when he does this, I mark either verbally, or with a clicker, then he gets a high value treat when he arrives in front of me.
Because Marley is so good at this game, I don't mark and reward every check in now, however, when you first begin working with your dog, you should mark and reward every check in .