Not sure if this applies but check the obvious first. Does it have a kill switch? Is it in gear? Any petrol in the tank?
I remember a trip to Brighton one hot summer day and I parked next to a guy with a shiny new VFR. He looked very glum and said he had been trying to start it for 45 minutes and had called the AA in desperation.
I took a quick look, put it in neutral and it started first time
His SWMBO was most definitely NOT impressed with his mechanical abilities.
PS............ I am no mechanical whizzkid but I had done exactly the same thing on my bike the week before