The video shows a man in a green jacket and black shorts walking on a field. He is holding a whistle in his hand and appears to be coaching a group of people who are also on the field. The man is seen walking back and forth, gesturing with his hands, and giving instructions to the people on the field. The field is surrounded by empty stands, indicating that this may be a practice session or a training game. The man's attire and the presence of the whistle suggest that he is a coach or a referee. The people on the field are wearing similar green jackets, suggesting that they are part of the same team or group. The video does not provide any audio, so the exact nature of the instructions or the context of the training session is not clear.