First off I would try and get a group text started with all the guys going. We have a long running one between the members of our group. Sharing workouts completed, gear purchases, etc. Rarely does an entire day pass without one of us sending something out. This can help you get to know the guys, ask them questions, etc. If any of them live near you then try to meet up with some of them for a beer. Or better yet, a scouting trip to the hunt area.
People like talking about what they are passionate about, especially when someone shows genuine interest. These guy's wives and coworkers are probably sick of hearing about it, so you can soak in a lot of knowledge and bond with them at the same time.
Subscribe to Elk101. That's a requirement now for any new hunter coming with me.
Have them look at your gear list and Make sure you have what you need so that you don't hinder the group (or your buddy's) options.
Not sure if this is September or not, but if so make sure you are shooting your bow often. Get in the best shape you can. And buy a few diaphrams (I like the AMP from Phelps) and a tube (any will work) and learn to call (elknut's app is my favorite). You don't have to know everything or even understand how to put together sequences, but at a minimum know how to make basic cow sounds and location bugles.
Be safe. Don't point a weapon at anyone. Obviously.
Do your own research. Don't just show up with zero plan except to just follow the herd for 5 days. Once you know the unit you'll be in, do your own independent map study (elk101) and mark your own hotspots. Many times guys who have hunted an area for several years will just keep doing the same things over and over even if it's not working. If the elk aren't cooperating, then your fresh set of eyes may be the thing that salvages the trip. And even if it doesn't, it makes you part of the team and not just along for the ride.
Sent from my SM-G610F using Tapatalk