I was looking through my old blog archives and came across a post I wrote in 2002 about a Tokyo Friends party that I went to in Tokyo. I checked the hyperlink to see if it was still alive, and wow! They still exist!
I have no idea what their events are like now, but back in the day it was a cheap and easy way to meet other young foreigners and Japanese interested in interacting with foreigners and practicing their English.
If anyone has been more recently than I… say within the last 15 years, let me know what it was like!