Putting on a show.
As professionals, we put on a show with intent.
We may not necessarily feel our best in the moment, but we do not let the audience or the clients notice.
We keep our personal feelings aside and deliver on what's expected of us.
This is the hard part, the emotional labour, of being a professional.
An amateur has the luxury to act as he feels like.
A professional doesn't, especially when she's at work.