A public appearance means that she is out in a public area, or at a scheduled appearance, and is in public view for (at least) 30 contiguous seconds. She should generally be unobscured (so not in a car, or behind something translucent or opaque).

If it’s a royal internal event (think inside a castle), and footage is released afterwards, we’ll have to judge if that’s sufficiently “public”.

All true answers will Resolve YES. I won’t be betting here.

If you’re looking for a similar market with a June timeframe, try Kevin’s market (note, slightly different criteria):