I've heard quite a couple ways but I havent found one that exactly works yet. O.o
I've heard of gently sea sawing.
Closing your outside hand and vibrating your inside rein.
And taking and releasing your inside while holding with the outside.
I wanna hear how YOU do it..?
How do you get YOUR horse ON the bit...?
Any tips on how to do it?
Now for some people ON the bit means different things.
I beleive what I mean is ON the bit is getting the horse to listen and go hm.. 'round' for you.