Here is a description of the video. The video is shot in a gym with two treadmills and a stationary bike in the background. The camera's view is a reflection from a large framed mirror on a white wall. A man in red shorts and a black shirt is using a barbell. In the mirror reflection, another man in black shorts and a black shirt is flexing his bicep while holding a phone. He appears to be taking a picture or video of himself.