What is personal appearance?

If I stood before you wearing an old, tattered overcoat, a floppy hat, and mud covered boots, and nothing else, my personal appearance would be rather eccentric to be the least.- it might even put you off your dinner.

Personal appearance is how others see you at the time.

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Then, a famous celebrity may be said to be making a personal appearance if they appear on stage, or at a special occasion, etc. It is rather open to interpretation.