Law was sitting in the cafe that Luffy convinced him to go to & take a break from his studies. What he didn't mention until 30min before was that Luffy actually convinced one of his friends to go & join Law. Law sighed slightly annoyed, remembering what Luffy told him, "This could be great for you Traffy!! Think of it as a date, I'm sure you'll love them!" Still unsure as to why he even agreed to this 'date', he decided it's too late to leave now, & instead ordered himself some coffee.