Responding to a comment about one's appearance requires finesse and consideration of the context. It's essential to remember that using humor can be subjective and may not be suitable for all situations. However, if you feel comfortable using humor and want to respond with a witty comeback, here are a few lighthearted options:
"Beauty might be in the eye of the beholder, but so is bad taste."
"I guess mirrors do have a sense of humor."
"Well, my looks aren't paying my bills, so I'm not too concerned."
"You know what they say: 'Beauty is only a light switch away,' but unfortunately, it won't work on personalities."
"I'm like a fine wine; I get better with age. Can't say the same for you, though."
"I could be ugly, but I can change that. You, on the other hand, will always have that personality."
"Thanks for your concern about my looks, but I'm more interested in being beautiful on the inside."
"If looks could kill, well, I guess I'd still be alive."
Remember, the goal is not to hurt the other person but to disarm the situation with a touch of humor. It's essential to assess the person's intent and the context before using any comeback, and always prioritize kindness and respect in your interactions with others. If the situation becomes uncomfortable or hurtful, consider addressing it in a more serious and assertive manner or removing yourself from the conversation.