The person helping someone settle in is improving more than their first day.

An hour spent orienting someone on their first morning keeps paying out for months. What they learn early is not just where things are but whether asking is safe, who is approachable, and how much guessing this place expects of them. A person who starts with that footing makes fewer avoidable mistakes and recovers faster from the rest.

If someone new has arrived near you, give them twenty unhurried minutes and the unwritten parts nobody documents. Introduce them to two people by name and say why each is worth knowing. Check in again two weeks later, when the questions have become better ones.