Hello! Yes, actually; there are plenty!
The easiest thing to look for, even more than counting toes, is colouring. Three-toed sloths usually have dark stripes over their eyes and darker noses, and their fur is usually darker and shaggier. Two-toed sloths can be brown, too, but a lot of them are a light peachy colour. You can compare a three-toed and two-toed on my dorky, dorky blog. I always tag them.
Behaviour-wise, I’ve read that two-toed sloths are considerably faster than three-toed sloths, and more aggressive, too. Apparently you can just pick a wild three-toed sloth up and chill with it (if it’s not already hanging on something, because hanging tight = survival to them), but a two-toed sloth might try and scratch you.