I took Rotters Snr Jnr to his first game when aged around 8.
We got there early and parked up, I spoke to him about my first games in the 80's and when my Grandad used to take me on the coach from eamington to the European games, the AV floodlights, the smells etc...we talked about the history of the club and how special the club is (show him the David Bradley film on YouTube).
Photo outside the Holte, visit the McGregor statue and photo, visit players entrance (you never know who you may see). Get in the ground early...and tell him how proud you are!