make it fun

People need fun. It lightens them. It can be a source of "grace" - release from the burdens of time, obligation, duty. 

And, if you spread some fun, you can get a little engagement around your brand. For example, it takes some engineering to turn a staircase into a piano. And if your engineers get a call to meet that challenge, what will people feel about them after they've walked up and down that staircase?