First thing is to always be safe, meaning follow the rules of gun safety. Especially, never have you gun pointed at anything but the targets. People will put up with alot until it comes to being swept with a gun, even accidentally.
Next big thing is to be polite/courtesous. Ask if you're not sure about something.
Usually, you wait for a pause in the gunfire (like when people are reloading etc.) and then say something like "okay for a cease fire so I can hang a target". Make sure everyone acknowledges you, and do whatever the range procedure is. (Mine is to turn on a siren to signify someone is downrage)
While you're waiting for the pause, make sure you have your target ready to hang, then load mags or whatever. Don't be (or at least don't look) impatient.
I'm found, most of the time another shooter will ask me if I'm ready before I even get a chance to ask.
Once you're shooting, pay alittle attention to the other people around you. If everyone else is not shooting, pause to see if someone else is waiting to hang targets or other needs a cease-fire. You can also pick up good range habits by seeing what others do.
Keep in mind that 98% of the people you encounter will be friendly and helpful. But there's always that 1% that have to be jerks. They may yell and curse at you, and do whatever they can to ruin your day. You mostly have to put up with them, but don't let them discourage you. Any mistakes you might make, should just make you want to practice even more.
Oh, the other 1% of the people you meet, will be friendly, know absolutely everything about ever gun ever made, and be able to shoot expertly with all of them. They will know exactly what you're doing wrong and how to fix it. And have tons of stories that will be interesting and humorous. At least that's what think always told me
