Show times on log, like in chat.
This would really help in allowing party leaders to see how long it's been since a player has acted, and drop them from the party or not as appropriate.
Aaron Abenoja commented
I agree, and in another idea, there was the question of if there should be a skip. This is a good idea, and if you could add a vote system then a timer for the player who is taking to long to respond, then that player may have a minute after a minute to respond, other wise take action to skip or boot.