May I reapply lipstick in the presence of others?
In general, personal grooming should be done in private. But putting on lipstick without using a mirror and without fanfare is one grooming ritual that can sometimes be performed in front of others. It’s okay to quickly apply lipstick at the table if you’re with close friends or relatives in a non-business situation, and at a non-deluxe restaurant. Skip anything that involves the use of wands, pencils, or lipstick brushes, though. And when in doubt, don’t do it, such as when you’re at a business meal or with people you don’t know very well.