Platform and concept are great. It is a really great feature to be able to split into groups for sub conversations which better mimic real life events. One feature I think would be an addition there is if a small window showing the faces of the people in the other groups (as a collective) could be implemented. In a pub environment, it's possible to see/hear the other conversations happening and could promote someone to actively engage in that conversation. There were times that conversation appeared to be slowing in the group chat I was in and it would have been interesting if, for example, I could see that the other group were all very animated or laughing, as this would probably prompt me to jump over and see what was happening. Perhaps a second feature there could be an optional 'banner' across this mini window of other conversation where you have the option of stating what the subject is (ie football, sports, reading, personal life update etc...)