Most of the replies have focused on big game and western hunts. I would suggest starting with something a little easier. Waterfowl, pheasants, grouse, turkeys, etc are good ways to start. They each have their own challenges, but nothing like starting out on a backcountry elk hunt. Do NOT start on a backcountry elk hunt. That would be like the first time skiing you try the most challenging ski run. A midday pheasant hunt in good weather is a great way to start. Watch the dog work, enjoy nature. Then go from there. A good way to start is to volunteer for a conservation organization like Pheasants Forever, The Ruffed Grouse Society, etc and meet some hunters. You will get an invite most likely and take it from there! The National Wild Turkey Federation has mentor hunts, go check them out. A mentored turkey hunting a great way to start! There are other adult onset hunting programs out there. Check you Department of Fish and Game to see what they offer. Good luck to you and report back on how you like it.