How do you praise your kids?

A friend forwarded this to me: How not to talk to your kids. Both Hubby and I thought it was fascinating, and talked about our own childhoods and how the types of praise we usually got influenced us.

Then, tonight, I realize that Peanut is understanding quite a bit of language, demonstrated in this video --

No less than 3 times does Peanut demonstrate that he knows what "drink from the cup" means. I found myself wanting to say "You are so smart!", but remembering the article about praising your child's effort, not intelligence, I worked to change my praise. I said, "I can tell you are working hard to understand all the words I use" and similar worded praise.

How about you? How do you offer praise?