At the end of Chapter 1, Yasmin wll ask you to come to her office to talk. Outside of her office you will meet Vinh for the first time. Talk to him and at the end of the conversation he will tell you that you can pick up a package for him. Turn around, head dow the hall. Enter the door on your left.
You're looking for a mail box on the bottom shelf on the left hand side as you enter the mail room. There'sa box on the table that is not the correct box (took me forever to figure that out). Interect with the mail box twice and then you can take the package back to Vinh.
You can do this after talking to Yasmin.