I prefer to have an open action, locked back slide, or pulled lever handed to me. It shows me that the person doing so is safety conscious. But I also know many people who are very cautious & even check a firearm before handing it over don't do it. As such I don't get upset or give them grief.
And heck, in a gun shop, or at a gun show, or such, often an employee may not know HOW to open the odd or unusual firearm to check it. Especially a much younger person.
When my youngest son went to a gun show for the first time,, at age 7, he wanted to handle & look at a LOT of firearms. Without me having to remind him, he would always ask the owner before picking one up. Then he'd pick it up trying to always point it in a safe direction, while he would attempt to check it for "clear." If he didn't know how to operate it,, (after trying to figure it out on his own,) he'd look at me and ask, "How do I check it?" I would then step in & demonstrate it, and allow him to do it himself.
Not a single refusal or complaint by the dealers at the show,, but several compliments by them about his gun handling.
Now,, both boys are in their mid 40's,, and no matter what,, they always check a firearm even if they see me or anyone else do so. Action open or not.
But by always checking it,, no matter how it was presented,, shows that I'm as safe as I can be.