If we're talking about something regular, e.g. a cafe, then that's easy: Not. To be honest, it's a tiny bit try-hard. It's like you're trying to get everyone's attention, when one of the main reasons for sunnies is to disguise yourself.
But if we're talking about something not so regular, e.g. a fashion show, then that's actually quite easy too: Hot. The starlets sporting dark specs in the front row of, say, a Chanel show may look a little strange to some, but to most in the fashion-know, dark sunglasses at a fashion is accepted, if not expected.
Take these women for example. Some of the most fashionable in the business. What's the one thing they all have in common (besides the fact that they're crossing their hands and legs)? Lol.