Help with animating a person in my scene

I was wondering what’s the easiest way to animate a person in my scene, I want to make an audience that will react with a response to the user so I want to set up a button for each reaction/animation, I tried this but with no avail , It did seem to work on one of the tutorials but it’s not working for me for some reason and I am clueless to why. I really wanted to keep it as simple as I could. I was wondering if you guys could give me some insight! Thanks!