Sure, but I don’t really expect people to know how to refer to me before they meet me. Context provides some clues, and if they guessed then they’d probably be correct. “They/them” also works if in doubt. But presumably when you meet someone they’ll tell you what they want to be called (their name), and potentially their preferred pronouns. It’s more common in some circles than others, but all it requires is being a good listener and some humility. If you misgender someone by accident, it’s an honest mistake and that’s okay.