We have a 3-year-old visiting. She's pretty good friends with DS2, and gets on with DS1, too.
She's always been a bit funny with me, tbh.
She won't look at me, and is covering her face if I'm in the room. I can hear her interacting fine with both DSes, so I can tell she's not distraught.
But it's a little bloody weird, isn't it? And it means I have to delegate DS1 to help her with the loo ...