At the start of the Jeremy Vine Show on Channel 5, when JV introduces the guests for that morning, his assistant, Storm Huntley, applauds while moving her hands round in a circular fashion. What's that all about?
"Have you got a link please? Does she normally do this? " 1. No 2. Yes.
Sorry, it's not on YouTube. You need to watch it, or this description should be enough: She claps beginning with her hands raised and then she moves them in a circular motion while still clapping. It's quite brief; she may only make a semi-circle. I couldn't say whether it's clockwise or anticlockwise.
You could well be right, Mamyalynne and Tora. I must say, I have only noticed this recently. For quite some time they have not had a studio audience (covid), and I don't think that they have a virtual audience. It just looks weird.