A rabbit will binky when it feels really happy or excited. Binkying looks like a large jump in the air while the rabbit slightly twists its body and head at the same time. A binky can also look like a sharp flick of its head accompanied by a small ear wiggle. A rabbit that feels safe and secure in its home is more likely to binky around.
You cannot teach your rabbit to binky as it is an inherent behavior. Rather, a rabbit will only binky when it feels like it. Additionally, a rabbit will have its own likes and dislikes when it comes to foods, toys, and ways of playing with you and other rabbits.