I've given a business card with my contact info to ranchers and have offered to help in any way I can. A thank you and an offer to help them for permission is the way to go IMO. After you get to know the rancher and come back to hunt the next year or even after your first hunt and while you are getting to know each other only then would I bring his fav drink of choice. For me it's been Crown and Coors Lite. But that's our boys here in Nv.