Hi, I agree with colliepoodle.
Get your dog at a distance away from other dog where he is comfortable and reward him- wehter its treats or praise, does not matter.
Then gradually close up the distance.

Also another command to teach is 'watch me' and start this off at home, by holding a treat up to your eye and asking himt o watch, then gradually do it without the treat, so that he will look at you on command, then you can ask him to do this when near other dogs so his focus is on you. This command is also helpful while doing agility so his focus doesn't wander off to the other dogs

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