Which button is the button you're supposed to push?

Hey, you're making him nervous. Do I look all right? We don't have time for a control group. Hey, I'm just gonna sit this one out, ok… Point to it. I'll be right back. No, no, no. That's how eyesight works, you stupid ra… I'll go after Lena. Those animals, why are they hurting them… Um, no. Mr. Riley, there's nothing I can do. I'm feeling a little bit oozy. You knew the risks when you took those p… Now you know what you want yet?