Well you could have a small intro like showing your name and maybe having a few goofy ski shots, and/or lifestyle and timelapse shots. I think it's cool to have a a few little shots before the skiing starts if you are making a good edit, but also if it's a promo you don't want to take up too much time with other extraneous shots. Also, if you are doing a good job editing to the song, as the song is kinda doin a little intro, (if it has one before it really gets going) throw a few intro shots in then.