Remember not to pull back on the leash or yell at your dog if they bark or otherwise act up, because this increases their excitement level, makes the experience negative, and makes them associate that feeling with other dogs. Instead, maintain calm-assertive energy and distract them with a correction, whether it’s a sound you’ve trained them with, a quick tug of the leash sideways, or touch. When all else fails, you can always calmly walk away.