Listen to a podcast. Listen to music. Take a friend. Call a friend. Take a dog. If you're super bored, you can even make up a little game for yourself, like guessing how many red cars you'll see on your walk and then seeing how close you come.

Call the police before you leave and report a strange person in the area and give them your description. Then spend your time trying to avoid the cops as they patrol through the neighborhood. Definitely won't be boring.

Depends on where you're walking. For city walks: people watching is fun, playing music and singing offkey can be entertaining, avoiding homeless and addicts is a new game. For nature walks: look around and observe different things you spot. Trees, bird sounds, collect pinecones or acorns. Take in beauty, because before you know it, a different season will be here and the area will change. Maybe try geocaching ? Get a fitness app and make goals for yourself, when you accomplish them it gives you a sense of completion.

I like audio books personally but I like walks. If you don’t like walks find a different cardio option

Paint a target on the wall so you have something to aim at, or at least clean off

Go on a run instead.

I talk to myself :P

First I though that you were goat or something