This is an interview done by your squad leader. They'll ask you all types of questions, but this is rather informal, for example, my interview was done in my PT clothes outside the theater where the guys in the platoon were watching Anchorman. The squad leader is watching you all week, and actually rates you on certain areas such as "Military Professionalism" (something along those lines, I don't remember exactly) and then talks to you about these little areas. At the end he told me this isn't used in the admissions process but I wouldn't leave that to chance. He also asked me questions on what I liked about SLS so far and what the cadre could do differently or improve for next year. It's only ten minutes, everyone's was different, and nothing to worry about.