How can I see the direction of a moving sprite (who's using pathfinding) without looking for angles?

So I have this little chicken who I want to move around every few seconds in this little field. Basically I just need to check it's direction so I can mirror the sprite so its looking in the direction its walking. I Because I only want the chicken to move left and right and up and down, but not change angles (only move left and right) i cant find a way around this. If this isnt clear I can provide screenshots and code. Thank you

You can use Sprite.Pathfinding.MovingAngle expression. If the moving angle is between 90 and 270 degrees, set the sprite mirrored.

I tried that. The problem is since I need to sprite to not rotate, rotation is turned off, so no angle is being set, its always at 0.

I'm talking about Pathfinding.MovingAngle expression, not sprite rotation angle.

How do I access the expressions. I do not see anywhere where I can actually put in this stuff. I dont know if i mentioned this, but im using C2, not C3 in case that makes any difference