I just re-read my dream journal from last night. Sentence number one:
"I could do that shake-your-hand snappy thing!"
You know that thing? Where you let your index finger go limp and you shake your hand around in the air and if you're good then it goes "snap" when it hits against your other fingers? My dad and my friend Pete can do it, independently, so I think it's a pretty well known trick.
I could never do that... before last night. Now I just tried it again. And I can kinda do it. Whoa!