The woman was inspecting Ivar closely now, which made him get quite uncomfortable with the situation. Ivar wasn't good at dealing with people.
No wonder, the only company he had since he was a little kid was his mom and the good clients that came every day to see her. Those were the only people that he talked to before, but he always got along better only with his mother.
When a teenager, he didn't have time to go to school, nor to play with the other teens and kids on the streets. Since his 10 years old, he needed to find a job, somehow. The earlier someone could get a job in District 42, the bigger their chances were to be chosen to work inside the Castle, which was Ivar's case.