Mood: The mood of the video appears to be celebratory and joyful, with a focus on birthday wishes. The theme seems to revolve around love, relationships, and possibly a romantic comedy. The overall emotion conveyed is lighthearted and festive.

Environment: The setting of the video seems to be an outdoor location, possibly a public place or a party setting, with blurred lights in the background suggesting a lively atmosphere. The presence of a group of people gathered around the main couple implies a social gathering or celebration.