horse language

Though I know nothing about them, I thought this was a good looking horse and I paused to speak to it. 

We stood close, looking at each other, (or was it looking at the ground?) and I wondered if it wanted me to stroke its nose, but I wasn't sure. So I didn't. I took a few photos and then walked away. 

Was it puzzled, disappointed, indifferent?
 
Next time I should take along a horsey person to translate.