Not sure if you are referring to deer but for us public water duck hunters:

(1) Someone who will keep their lips zipped when you have a good day on the water. Ducks change their minds daily but sometimes you can get em the next day or a few days later if they aren't pressured again soon. I don't want you taking any pictures with your GPS location "on" and posting it on FB, twitter, or whatever to brag to your buddies.

(2) Willing to put out/pick up decoys, back the boat in, chase a cripple = willing to be a worker bee

Duck hunting is hard work on those who like to host others so if you get invited, at least offer to help with all the chores. I will probably turn down your offer to help the first trip because sometimes newbies can just slow me down but if you can pick up on the process then you're more likely to get future invites, ha