Depends on the game - with some games this is a design flaw, where turns are long & too much changes to make planning for one's next turn feasible. So to start with, choose games with simultaneous turns, short turns, or dynamic turns where I might get something from your actions (e.g. Concordia)
QuantumWhat's the best way to keep players engaged when it's not their turn, specifically inexperienced players who are grappling with the rules so are slower?