After the distribution of tiles,
the Dealer has 14 tiles and the Players have 13 tiles each.
The Dealer begins by discarding 1 tile, face up.
After the dealer discards, the player to the right of the dealer takes the next tile off the wall, and chooses one discard. Play continues counterclockwise, with each player drawing 1 > discarding 1 on each turn.
Player's discard tiles face up, each in their own discard pile (strictly speaking, of 6x3 tiles), such that the table will eventually look something like this:
Note that there are only 14 tiles (the "dead tiles") left at the end of the game.