Try this
- Use language that accepts the gesture, such as thanking them for saying it.
- If the subject is unwelcome, state that preference directly rather than debating whether the compliment is objectively true.
A worked example
“Thank you for saying that. I’m not sure I see it the same way, but I understand you mean it kindly.”
An invented example to adapt, not a real exchange or a script you have to follow.
Before you leave it here
You can ask to change the topic. Receiving appreciation does not require an enthusiastic performance or a reciprocal compliment.