Snap a photo of your tiles. Get told, in plain words, what you have and what to do next.
With a photo of this year's card, the coach can name the exact hand to go for. It's only used for your answer and isn't saved.
American games start with the Charleston: everyone passes 3 tiles right, then across, then left (you can never pass a joker). A second round — left, across, right — is optional, and then you may trade up to 3 with the player across. East has 14 tiles and goes first by discarding.