If you REALLY WANT to chat, then you may have to sit in there for quite a while - while doing something else like reading the threads before someone else turns up, as I have found.

I have also found that since there is no audible alarm when someone else enters, people may enter and hang around for just a minute or two before exiting - I check back regularly, but one can get tied up for 5 - 10 minutes while busy...

So recently, I haven't been bothering to enter if no one else is there - if everybody does that...