I would set him (my brother who's never hunted) up on one of my stands and let him hunt it. I certainly would give him my best spot but if I took the time to hang the stand the spot is a good one.
Then next year I'd take a couple of extra scouting trips and go with your brother. Help him by showuing him what to look for. Get hi a book on scouting for Christmas or a birthday and then take him out and make him put it to use. Your brother just needs a bit of guidence. I wouldn't make a habbit of scouting for him but set him up on a couple of hunts this fall and then get him pointed in the right direction.

I wouldn't do this for just anyone but it's your brother