I avoid complimenting at all, and generally avoid saying anything that will make them think they are important.

Is that the right way to go about it or is it autistic?

As an example, I think a lot about the psychology behind personalities and noticing different people's different traits etc. And I this one girl is such a specific kind of considerate. I wanted to point it out while we were talking; "You're considerate, you know that?... A specific type of considerate" but stopped myself because it would be a compliment.

What's the general rule about compliments?