I'm too busy at work to be bothered about looking busy at work.
This is the way it was with most of the jobs I had.
The one exception was the night shift at a nursing home when I was a teenager. I 'worked' from 11pm to 7am. The only other staff in the home was one nursing sister. I doubt we really had more than 4 to 5 hours work to do and often less. I had to start preparing breakfast at 5am but it wasn't served until the 7am staff came on. Some days I did a big pile of ironing and I had to answer the night bells but that wasn't more than maybe six a night (I think the old ladies all got sleeping pills). The sister had even less to do. She would disappear into the pharmacy room and work for an hour preparing the medications for the next day but apart from that and answering the bells I don't think she had anything lese to do most of the time (except for a time when many of the ladies had the flu and then we were run off our feet).
Because there was only two of us we didn't have to look busy. We would spend time talking or playing cards.
For this we got paid double time
