Asking someone to wear a mask is so 2020. The new tough conversation is finding out about someone's COVID-19 vaccination status. Experts say the way you ask matters, including your tone, sincerity and choice of words. But for starters, it shouldn't be a random question, says Elaine Swann, an etiquette expert and founder of the Swann School of Protocol. After all, it is personal information that usually isn't any of your business — unless you plan on letting the person into your personal space. And even then, a more private person still may not want to disclose their status. So...