Good advice so far...
Good bits so far,
...
I'd add:
Wear a t shirt or upper garment that is
not open collar, like a polo shirt or henley type garment. I'd avoid tank tops or "halter tops"(females).
Spent cases can come flying from all angles with semi auto or class III weapons.
In 2009, my friend had a hot brass case pop down his polo shirt with my PX4 C 9x19mm.
About a year ago, I read a local media item about a young woman who was hit by a spent case. It went down her blouse & in a panic, she
shot her fiancé on the range.
Id also wear proper foot gear. Something comfortable but with traction so you don't slip or fall over while holding a loaded weapon. It's easy to slip or tumble if excessive amounts of loose brass are laying around a indoor range.
Proper eyewear is a smart idea. If you shoot often, get a high quality brand. You might also consider a over-size protective cover even if you use regular glasses like I do.
A few weeks ago in PA, at my friend's private gun range, I had a older .45acp case from my M&P .45acp Compact fly up and bounce off my forehead. It slowed down but the hot case slid right past my eye socket,
.
My friend saw the fired round & was concerned. He said I needed better safety eyewear to put over my corrective glasses.
I'd agree too with proper cleaning & hand-washing. Always clean up your immediate area. Police up your spent brass & sweep up if the range has a broom or cleaning items. Be considerate of the next gun owner.
I sometimes stop & do a quick field cleaning of my firearms to avoid excessive amounts of carbon, lead, toxins, smoke, etc. It will keep the weapon(s) clean & reduce the amount of pollutants around you if you plan to be there for a few hours.
A few ranges are strict & do not permit field strips or basic service for liability reasons. The Gander Mountain Academy near me has CCTV units on
every lane.
Clyde