There are a lot of qualities that constitute a professional. Take this take-away coffee that I just ordered.
This is a take away coffee, served in a paper cup with one of those plastic lids. Even though the consumer can’t see the top of the coffee due to the lid, the barista still went to the effort of pouring some latte art on it. This is one of those qualities that constitute a professional. Even when your hard efforts may go unnoticed and unseen, you still perform your work at the highest level.