Simple character 2D-animation! (iOS)

Hello, I have done three animations with SpriteManager 2. Run right, run left and jump.

I used the standard Unity sidescroller prefab for iOS and attached the standard sprite on the "character". So when I start the game I can make him move him left, right and jump with my iPhone. But I don't know how to change between the animations. So here is my question:

HOW can I make change the animation on my "character" depending on if he's running left, right or jumping?

I'm currently taking a course about Javascript coding, but I'm pretty new to this stuff so please go easy on me :)