Taking correct body measurements is of key importance especially to models and future models. So that they remember about the leftover weight in their body from thanksgiving , now when they take correct body measurements , they are aware and will counter such things to be better.
Answer:
Jack has to be very calm and try his best to present himself in an outward way and think about the fact that by the end of the night no one will remember that he messed up, I feel like he'll be okay :)
The answer to this problem is Linux
