This dream took place at a fictional version of The BP Library, I was there working while wearing my face masks as were some of my coworkers (so the COVID-19 pandemic was still going on I assume), at some point I wanted to talk to my female coworker JB, who did not seem to have noticed me yet, I did not know what to talk about & I did not think that she really wanted to talk to me anyway, and so I somewhat sadly resisted the urge to talk to her; and I continued my work.
At some point, my coworker Mr. CF stopped to talk to some contractors who were doing work inside the building, my former male classmate BF was one of the contractors, he was on a ladder or stool working while wearing a face mask, and I joined their conversation.