Want to talk about something, but not sure where to start? Start here! The Lobby is our off-topic space here on Which? Conversation. Itâs perfectly natural for a conversation to go off-topic, particularly if you want to add some colour to a point youâre trying to make. When the conversation well and truly departs from the topic at hand, or if you can’t find a space to talk about what you’d like to discuss – the Lobby is a good place to start. This is our fourth Lobby in the history of Which?