Well, I can do tongue tricks #3 and #4 - probably # 2, but I'm not sure what exactly what it is. I can wiggle my ears - can't everyone?

True story: I had a boss who had a lazy eye and a habit of getting people's wandering attention by pointing to his non-lazy eye and saying "the left one." One day, he was giving a class for people in our office, and when he assumed one person was gazing off into space, looked at her and said "the left eye". Quick as a wink (so to speak) she looked back and pointed to her right eye, saying "no, doc - the right one." Seems she had a lazy eye too. I can intentionally make my eyes do that, and can keep one in the same place while moving the other around in a circle. I freaked out an optometrist once, who thought I had independent eye function. I learned how to do it, and I'm not sure if it's a unique ability, or whether almost anyone could do it.