The work of making a place welcoming continues after the welcome sign is hung.

Declaring a place welcoming takes an afternoon. Keeping it that way is a practice that never quite finishes, because welcome is made of small live things: who gets spoken to, whether the jokes need history to follow, whether a newcomer can find the bathroom without asking. A sign announces an intention. The room either honors it on an ordinary Tuesday or does not.

Look at one place you belong to and find the moment a newcomer is most likely to feel lost. Fix that specific moment, then check again in a month, because the answer moves as the group does.