I'm personally finding it necessary to make some very basic announcements, like circle boundaries shouldn't be indiscriminately crossed, and people should only walk clockwise within them. Again, we're dealing with a lot of newcomers. No Pressure To Physically Touch. I've never seen anyone ob- ject to holding hands, but a lot of people have commented that they cringe at kisses. No kissing spirals in open circles.
Newcomers tend to go along with group activities, even ones they're uncertain about.
Maybe they should be assertive, but more often they're not, and organizers are their voice. Or we might experiment with providing an Intimate Circle, which would include a lot of hugs and kisses. That should be clear to newcomers. Choice In Participation. In open circles, if the dancing gets too rapid or wild, participants can step back.