Separate arrival time from the main start
Tell guests when they can arrive and when the main game will begin. A half-hour arrival window gives people room to travel without making punctual guests wait indefinitely. Ask anyone running late to send an updated estimate. You can then decide whether there is time for a short game, rather than repeatedly delaying an unspecified start.
If a person already knows they will arrive much later, be candid about what they can join. They may prefer to arrive for a second game instead of watching most of the first. Do not promise an easy midgame entry until you have checked the actual rules. Many games depend on equal starting resources and a shared history of decisions.
Use an opening activity with a clean stop
Choose something short, familiar and easy to reset. A game with discrete rounds can work if everyone agrees how many to play and there is a genuine ending after those rounds. Avoid calling an open-ended session a quick filler merely because its rules are simple. A simple game can still run well beyond the expected arrival.
Keep the main game's components packed or prepared on a separate surface so the transition is clear. If the opener finishes five minutes before the guest arrives, conversation may be the best use of the gap. Another rushed round can leave the group finishing just as everyone is ready for the main activity.
Offer a welcome without disrupting the current game
If someone arrives during a game, pause at a sensible boundary to say hello and explain the expected remaining time. Offer a seat with a useful view if they want to watch, but let them relax elsewhere if they prefer. Watching should not automatically mean helping one player, reading hidden hands or making strategic comments.
Use a published joining rule when the game has one. Otherwise finish the current session before adding them. Sharing control of a player position can change decision-making and may reveal private information; use it only with everyone's agreement and within the game's rules. It is usually simpler to keep a shorter second option ready.
Keep the plan proportional
One unexpected delay does not need a strict attendance policy. A recurring pattern does need clearer expectations: the main game starts at the stated time, and later guests join the next session. This lets everyone make an informed choice without blaming either early or late arrivals.
When choosing the second game, include the new arrival in the decision. They have missed the first experience and should not be treated as an extra spectator for the rest of the evening. A comfortable transition is worth more than preserving the host's original sequence of boxes.
