Classic icebreaker guessing game
Run the classic guessing game with your team: three statements each, one false, and the group works out which. This version gives you somewhere to collect the statements and reveal answers together.
In a team setting it works best with people who know each other slightly. Colleagues who have worked together for years already know the answers, and brand-new teams have no basis to guess.
One to two minutes per person including voting, so a team of ten takes fifteen to twenty minutes. Larger teams are better split into smaller groups.
Less well, since colleagues often already know the answers. It works best with teams who know each other slightly, such as after a reorganisation or with new joiners.
Let them pass without comment. Compulsory personal disclosure at work costs more in goodwill than the activity gains.