This is the gist of it:
An offer is given, but that offer has a significant drawback.
The person below me says whether or not he/she will take the offer and why, and thinks of the next offer.
The person below that person does the same, etc.
Give offers in the shape “____, but ____.”
First offer: You legs become five times as strong as they are now, but your arms become a third as strong as they are now.