I think what people are saying and certainly what I recommend, is don't wear your very expensive flashy stuff. You know, your huge diamond earrings. Your huge diamond eternity rings and cocktail rings and tennis bracelets, etc.
I wear my gold chain. I wear my usual watch and I take some simple earrings with me. I leave my diamonds at home.
I don't flash a wad of cash around, or at least I don't think I do.
Regardless, the last time I was there one of the DM's said I was rich. I asked why he would think that and he replied, because you are. Well, I'm not but I'm sure to many down there, I appear to be and why wouldn't they think so? That's why it's important not to flash it all around. It's possibly unsafe and very probably rude.