I really don't get why they think that's a good message. Acting like you have COVID first of all means isolating. That's not what they mean. And obviously people who have to work etc can't do that in general. So they've sent a message that's obviously contradictory.
I also think the concept of asking people to imagine they have an illness is dubious. It's a negative, depressive thing. It's counter productive. People who are ill stop thinking about anything apart from themselves, keeping warm, etc. What they need from people is mindfulness of their actions and those of other people. Many mindfulness practises are actually designed to get people out of that inward facing state of mind, even to help them get rid of unwanted thoughts, mindsets and anxieties linked to when they were ill, or believed they were. It's about bringing people back into the light.
I think they need to ask people to make sacrifices and, yep, be mindful. Aware of everything they are doing. Think about what they can do more safely or differently. Remember the guidelines. Err on the side of too much caution.
That's a positive request. Focusing and purposing your awareness is linked to positive states of mind. It gets people to tackle something, gets them thinking about themselves, their environment and others. It says, everyone can do something.
Daft thing is, people like this stuff. They see it in others and it becomes infectious. I think it's one major difference between now and last year. Everyone was making space and showing concern for others. We should be fighting to get that mindset back.
Act like you have COVID.... uhh. Meaning? Don't stay up? Have a Lemsip and a hot bath?