Visible crew/equipment: In the opening shot, as the camera moves down the building, in the windows you can clearly see the cameraman & camera on the hoist/crane. (00:01:00)
Visible crew/equipment: In the second before last scene (when John and Kate finally met and are hugging each other in the center of the ice rink), the camera moves around them in a loop and at one point in the background, we can see the snow being shot out of the snow-making machine located just outside the rink. (01:24:05)
Answer: They are engaged and celebrating the day they met each other.