I mind my own business and normally don't speak to other people there unless spoken too.
Unless I see a safety issue.
In the case of safety issues I am never shy. I will ask people to be mindful of their muzzle and various other things.
I was recently at the range and it was hot. REAL hot. Tons of shooters and even a couple Uzi's rocking full auto. I turned from the line and noticed a woman there that did not have her eye protection on. She had some, but wasn't wearing them. I had gotten a hot casing burn that very day.
I simply said to her, "Range is hot. You forgot your glasses." gestured at them in case she could not here me through her ear plugs.
She looked at me like I had a shrunken head.
She didn't put on the glasses. No skin off my nose. It's her eyes. I did my duty.
Turns out she was a Range Officer.
I was a Range officer for several years at the NRA Range when I worked near there. During the training, the key thing they made clear was that RO's lead by example. ALWAYS.