New horse, He's nervous, tips?

Haiii, hahhaa I just bought a horse. He's 12 and a TB, so he's obviously a bit nervous anyways. He's been at my barn for 2 days now, I've showed him the property and he was free running in the arena. He was in there a good 15-20 minutes maybe? I was planning on lunging him tomorrow before I hopped on, are there any calming things I can do before I hop on? I talk to him and everything, are there any certain areas on your horse that if you rub and massage that calms him down?