Okay. Where were you coming from tonight? >> I [bell] was coming from I don't know. >> You don't know where you were coming from? >> I was hanging with my friends. I was out off the hook. >> Off the hook? Okay. How much have you had to drink tonight? >> Uh a few glasses of wine. >> A few glasses of wine? >> Yeah. >> Okay. How many? Like a few? Like two, three, >> four. Probably four. >> Four? Okay. All right. So, for this uh first test, you stand stand right Actually, yes, stand right here. So, you're not facing the light. >> I don't even understand the instructions. >> I know. I I didn't explain them to you yet. So, stand right here with your feet together, hands at your sides. Okay. >> Like this? >> Yep. And you said you don't wear glasses or contacts? You don't have any issues with your eyes, eyesight? >> Yeah. Oh my gosh. So, I don't >> Okay. That's your natural eye? >> That's my natural eye. >> Okay. So, can you see the tip of my pen here? >> You said we are finding stuff right here. >> The tip The tip of the right here. Can you see that? >> That's not the tip of the pen. >> The tip of the pen. Can you see that? >> Yeah. >> Okay. All right. And what I need to do is follow the tip of the pen with your eyes without moving your head, okay?