How to make animation in AR when showing an object?

Question

Unity

Working with AR in Unity using Vuforia. I have in my project a label and a picture that should appear. We need to make the animation work every time Vuforia recognizes the label and freeze at the end. Now everything works in such a way that the animation itself starts working when the application starts, and when you hover over the label, the animation can be in the middle or already over, and besides, it repeats. Googled the question but couldn't find an answer.