Running a game of Dungeons & Dragons, or any tabletop role-playing game, involves telling your players what they see. Players rely on you to give a sense of tone and ambience, but also to point out anything interesting or relevant to their quest. But they also need you to leave them room to ask and explore. A good game master learns how to describe a scene in enough, but not too much, detail.
One way to learn that skill, says redditor non_player on r/RPG, is to turn audio descriptions on when watching movies and TV shows.