This is my pinto Icelandic Horse (Pony) mare, called Cookie, who is about 10 years old. She was born in Iceland, but came to the US with her dam, as a weanling. She is very calm, very people-oriented, and a very easy keeper (too easy, as we have to watch what she eats, and not give her anything that is too high in carbs).
She learns very easily, and is very willing to do new things and learn additional behaviors and tricks.
Here she is, yawning, on the cue of the ASL (American Sign Language) sign for "Y":