Animator in Unity 5

Hii all..

Unity 5 has added Entry and Exit nodes in state machines. I have one scale animation which is going to scale the object.

But now i want to set parameter to trigger this animation when condition satisfied.

But i do not understand about transition where i can add parameters.

If i add transition from "Any State " to scale animation state then its not looking perfect. It looks like trying to play animation and its play for 0.2 seconds and then stops as trigger is false.

So what should i do for this ?