Mood: The mood of the video appears to be light-hearted and playful, with a theme of celebrating Teacher's Day. The emotions conveyed are likely to be humorous and entertaining, given the song titles and the image of three young men in a classroom setting.

Environment: The setting of the video seems to be a classroom, with a blackboard in the background and three young men sitting in front of it. The atmosphere appears to be casual and relaxed, with the men dressed in casual clothing.