Mood: The mood of the video appears to be nostalgic and sentimental, with a theme of friendship and reminiscing about good old days. The atmosphere seems to be light-hearted and joyful, with the group of friends sharing a toast and smiling at each other.

Environment: The setting of the video seems to be a cozy, intimate space, possibly a home or a small gathering place, with a warm and inviting ambiance. The presence of books on the shelf and writing on the wall suggests a creative or intellectual environment.