mine are doing a bit of nibbling at the minute and swinging round to have a go when I pick em up. I have just been doing as others have said, offer a hand and let em bite you then shove a finger/thumb to back of throat. I was having to do it a dozen times last week each play time....tonight twice so it must be working! Im just gettin back into ferret keeping and have noticed a few phases with mine
1. small and easy to handle, soft as owt, testing if you are food type of nibbles.
2. growing on a bit and getting more energy, still pretty easy to handle, testing if you are food/toy nibbles
3.