When I transitioned from live to F/T I would start by placing some used mouse bedding in the snakes enclosure, normally on top of the opposite hide that the snake was in. If you have a screen top, just put the bedding on top of the screen. When my BP would come out of his hide with his I'm hunting look (kinked neck and flicking tongue), I would dangle the mouse in front of him and move it just slightly until he struck. I learned that my snake didn't like to be touched with the mouse and doing so would cause him to lose interest and hide again, so you might want to keep some distance. I've also read that if your snake refuses you should wait two weeks before trying again. Hope this helps.