The next London meetup will be Sunday October 26th from 2pm. No topic or special activity. Just turn up and talk about what interests you.
The venue is the Shakespeare's Head near Holborn tube station. We'll generally have some sign attesting to the group's identity, and usually try to get one of the large circular tables near the back of the pub.
About London LessWrong:
We're currently running meetups every other Sunday, and tend to get between 5 and 15 attendees. Most of our meetups default to unstructured social discussion on LessWrongy subjects, though we occasionally have special topics, events or activities. Sometimes we play games.
We have a Google Group and a Facebook group where we plan and discuss stuff. We would be extraordinarily pleased if you joined them.