Who are the people in black t-shirts in the galleries?
They are Smart Museum gallery attendants. The gallery attendants enforce the Museum rules to ensure that your visit will be safe and that the artworks will be safe. They will tell you when you get too close to an artwork. They may also ask you to stop leaning on a case if you are doing so. Gallery attendants are also here to help you. For example, they can help you find a favorite artwork or point you to the restrooms and water fountain.