A quick tip for teaching your dog a reliable 'Stay'.
When your dog is in a 'Sit' or 'Down', wait until you are back at their side to give their release command, rather than calling or releasing them from a distance. This means they will tend to settle down and wait for your return, rather than jumping at every little noise and move you make, hoping it's that magic release word. A dog's hearing tends to be very optimistic when it's a word they want to hear!
Teaching a reliable ‘stay’, especially under distraction, is great for improving your dog’s self control and reliability in different situations. It’s also useful for getting cute photos!