Even zoos around the world are on lockdown because of the Coronavirus. Even thought zoo animals are in an enclosure that is supposed to be as close to their normal habitat, they still see all the people walking through watching them. After a while, the animals look forward to seeing people. It is like domesticating wild animals.
Penguins are no different and a zookeeper in Newquay Zoo in the UK felt bad for the penguins that he oversees felt that his tuxedoed friends were missing the spectators, so he bought them a bubble machine and it looks like they had a blast.