When you do not know what to do try duck sound. :) It is like talking or giving commands. On Hui try to use verb that involves both wings around the little scared duckling.
I didn't finish your game, but I don't regret the time I spent there. If you come up with a simpler version, without giving up your initial ambitions, I'll play it again and finish it, because it will be a damn good game. Maybe uncommon verbs should be synonymous with a more common verb, and I don't really like randomness in games.
But you're the one who knows.