"Look" Cue
Before we can direct our dog's behavior, we need to have their attention. We can also ask them to pay attention to us instead of something else we don't want them focused on such as other dogs passing by, cats, squirrels, kids on bicycles, cars, etc.
Avoid saying the cue over and over. They will learn to tune you out, like we stop hearing airplanes if we live near the airport. Say it once and then let them know why you said it, even if they don't look at you right away.
Practice on-leash in different rooms inside your home this week. Next week, do it outside with more distractions.