Little Donks Behaviour

Hi,

I was wondering if anyone can help. I have a young donkey who is 1 year old, she has become very livley and will come running and bucking down the lane to see you with her nose almost on the ground nad her ears back but when she reaches you she will stop and is fine. I want to believe she is just being playful but i'm not sure haha if anyone can help with little donk behaviour it would be great as i am now dreading the terrible 2 stage :-)

thank you