If you need to warm-up a group of strangers quickly – for a workshop or a big group, then this might be useful. (I tried this last week and it definitely got people ready for their discussion groups…)
Ask one person to start introducing themselves to the group, giving snippets of information about themselves…things like hobbies, sports teams they support, kids and their activities, favourite TV programmes…
… as soon as someone else in the group spots a connection with the person speaking, (something they have in common with that person), the baton is handed over to them and they repeat the process… by the end of the warm-up everyone is connected to everyone in some way.
Remember, the moderator does need to move this on and keep the conversation lively in order to make this fun and dynamic