Marcus laughed as he flattered Alice on the phone, he wants to know where she is and what she is doing, knowing that she is also in Brooklyn.
He needs to make sure that Alice is still not aware of his moves and plan, that's why he makes her think that he is in Brooklyn with his buddies to attend the grand alumni and to have fun with his old friends.
Alice is thinking the same way too, as she told Marcus that she is going to attend the alumni, she made a plan on her mind to make sure that Marcus wouldn't find out about Simone's family and their address, she made a plan to prevent him from contacting his friends who can help him find Ramona and Simeon. Little did she knows that Marcus is one step ahead of her with his plan.
He already talked to some of his friends to help him. It's just that before he could even think of looking through the registration records for Simone's family, Alice already had someone destroy the records.
