Henry folds his arms for prayer. Claps when he is happy. Henry says "Ahh" when he is done drinking. Henry signs, "Food" when he needs more and signs "All done" when he is finished. When Henry spills his water on the table he will slurp it up off of the table.
Charlie likes to do all of these things with Henry since it is just so much fun. Charlie is also a clean freak and points out ickies, "Eeee."