- "Lost in space": Give your new hire a tour of the relevant facilities. Toilets, kitchen, canteen, bicycle garage, important offices (boss, secretary/team assistance, IT helpdesk, ...), etc. Same for online resources and intranet, have a proper entry page that lists everything relevant and has a proper search function (which seems to be exceedingly hard...).
- "Your chair is still on order": Have things ready on day 1. Nothing is worse than waiting on necessary accounts, hardware or people for the onboarding. If you cannot have things ready, at least have the decency to not have your new hire sit around twiddling thumbs, find something interesting and productive to do for them, e.g. learning new things.
- "Talk to the wee lass with the fangs, horns and the striped hair": Introduce people, introduce their roles and places in hierarchy. Even if things like "chain of command" are usually fuzzy at your place, at least for the first few weeks, make it easy for the new hire to fit into a simplified "command structure". Don't send a new hire to see somebody, always accompany them and make introductions.
- "Nobody likes the noob": Always make a point to include a new hire in the usual social activities. For example, go to lunch as a group (even if you usually don't) to get everyone together with the new one in a less formal setting.