Coolness is one of those things that's tough to define — maybe you can't quite put into words what makes a thing cool, but you know it when you see it, right?
But here's another good follow-up question to that: When you see someone you think is cool, or see someone do something that's cool, do you let them know it? Because that's one of the best feelings around.
So, all the folks in the pics below ought to know that they've made the cool list. They're cool, and we think everyone should know it.