I had always thought that infant sign language was a bit goofy.
Then I had a daughter that thought it was cool to bang her hand on the tray of her highchair to demand more of anything.
Maybe baby sign language isn't that goofy after all.
However, the week I began to teach her how to say please (touching your hand to your chin, and then lowering that hand slightly) must have also been the week that I tried to get her to show me where her nose is. Therefore, Clara says please like this:
OK, so nobody besides Mario or myself will know what she's indicating. However, she is consistent, so it's clearly cemented into her head as the way to ask nicely for something.
And mercifully, it's cut down on the table-smacking.