The most important thing is to be businesslike, but polite. You need to show your new PSA that you're glad that he is on your team, but you can not push a button it too.
I've set up links to video tutorials that can help him ( how to do Getting started and daily actions; how to play T-Time). Also I him briefly explain the essence of his work.
Also I kindly ask associates to call me and leave your contact details.