When I’ve done clicker training I always give a tiny treat at the same exact time. Takes a bit of practice but then it’s easy to do. They then associate the clicker as a good yummy thing. Eventually you click and give a treat every other time, then every couple of times, then every three or four times. Eventually you can then stop the treats and they still like the clicker. They’ll always do it because they’re never sure when a treat might show up. They eventually do it for the praise you give them. Also when clicking and treating you also calming say….good boy. Then continue on your walk or your exercise or training mission. Remember to only do the traning for no more than 10 or 15 minutes at a time. Then break up the time with play time or a nap. You can do this a few times a day, just not long sessions at a time.
