Introduction Game

Hi everyone, I'm running a T'au v T'au game (1000 pts) against a new player this weekend. Dude is super excited and mashed together his models in about two weeks.

Any tips on helping someone through their first game without overloading them or making things a chore? Also any T'au tips in generally thay might help a new player? I'm normally good about announcing my 'gotchas' and hypothetical movements/retaliations if someone seems stuck. I'm thinking of selecting the primary and special rules so we can breeze through that.

Game is gonna be Ret Cadre (Him) v Aux Cadre (Myself)