I had the same thought in my use of Gather and I think there are (at least) two separate scenarios. One is when someone is alone. Are they actually still physi

I had the same thought in my use of Gather and I think there are (at least) two separate scenarios. One is when someone is alone. Are they actually still physically present? Are they waiting for someone? In person, I can see if someone is actively scanning the room and appear open to a conversation. The second is when a group of people are already engaged in a conversation. Are they discussing something a bit more private? Are they speaking my language? Do they appear open to having more people join the conversation. In real life, I can hear parts of a conversation from a distance and look at how those in the conversation are positioning their bodies relative to one another to make some judgements on this.