Mood: The mood of the video appears to be light-hearted and romantic, with a theme of youthful relationships and possibly love. The presence of three young individuals, smiling and walking together, suggests a carefree and joyful atmosphere.

Environment: The setting seems to be an urban or semi-urban area, possibly a college campus or a city street, given the casual attire of the individuals and the background architecture. The presence of a brick building and a metal gate or fence supports this inference.