By the way - random kindnesses I've done in the past - just to give folks ideas

Fold and cut a piece of paper into a heart shape, write a nice message and tuck it under someone's windshield wiper

On a miserable day, weather-wise, give some who is walking a ride in my warm, dry car

Hug someone just because they look like they need one

If it snows, clean of the next person's car when you have done yours, or shovel for a neighbor

Give a service person (cashier, server, etc.) a bit of candy - leftover Halloween candy brings unexpected grins from unsuspecting adults!

Compliment some stranger's outfit, I make sure to mention it to someone if the color, or pattern, or something about what they are wearing strikes me as pretty!