Here's a detailed description of the video: A young man stands in front of a mirror, holding a smartphone to record a video

Here's a detailed description of the video: A young man stands in front of a mirror, holding a smartphone to record a video. He's wearing a black sleeveless shirt with white lettering. He flexes his arm, showing off his bicep. In the background, reflected in the mirror, are several other people in what appears to be an indoor recreational space. Some individuals are standing and talking, while one person gestures with their hand. The room has blue walls with decorative trim, and windows with visible street scenes outside. The floor has a tiled pattern. There is a table with a green cushion. The lighting in the room is bright and even.