Keith took on the job of a mentor and used the knowledge he had from reading the novel to help Vincent out. One of the reasons to his actions was that he himself did not have the opportunity to practice or try things out, so he decided to see Vincent do the trial and error.
Hours quickly passed and once 2 to 3 hours passed after noon, Keith sent out a message for Vincent to take a break. Keith himself wanted to get some rest as he had to stay awake at night to watch the fight.
Both of them took a nice nap, but Keith had some trouble sleeping as the boat wasn't exactly stable. A few hours after sun set, he groggily woke up and grabbed a long loaf of bread that was wrapped up in a cloth and placed in his suitcase.
He tore it into four parts and put three of them back into the cloth before he closed the suitcase. As he took a bite, he opened up his system to check what Vincent was up to.