The game immediately ends when a player places their 6th star token, even if they have other things they could do that turn or other things would happen afterwards.

Accumulate your final fortune—coins you had before the game end was triggered plus end-game coins—to determine the winner. You should have a mound of coins in front of you before announcing the total to the other players. To determine how many coins you earn for each of the three scoring categories, look at your level on the Popularity Track and pick up coins for that category (do this on your own—there is no need for a “banker”).