A release cue tells your dog that she has completed the behavior you asked for and is “released” to break position, play, etc. By using the cue, you clearly mark the end of the behavior and eliminate confusion in your dog. Owners often use a word such as Good, Okay, Break, Free, or Done as their release cue.
For example, you can ask your dog to “Sit” and “Stay”–hold her attention for 1-2 seconds, and then give your chosen release cue (“Okay!”), call her to you, and reward with praise and/or a food treat. Remember to always use the same word!