I'll be on vacation starting June 12th, which is the coming Wednesday and I really want to squeeze in a review before I go AFK, so please excuse this rushed, transcribed-from-my-notes, not-nearly-as-polished-up-as-I-would-like review.
First impression: there's too much rambling about how he doesn't have emotions. Rather than doing that, I prefer the character to show how heartless they are. Words can be said, but they are just the speaker's perspective. It's actions that define you.
And when he does begin to show emotions, it was all too clichéd. Some girl and her father was able to change you for the better. Granted, Sam was a total badass. I don't care how she was described to be tall, fit and beautiful, she didn't let anyone push her around. She played people like a keyboard, and she even caught Boy Nobody off guard. It really showed that outer beauty doesn't translate to being dumb, or vice versa. But I really wished she could have handled her emotions about boys a little better. Damn, that girl has some baggage. She somehow became a weak puppy when she "falls" for boys, and I wish she wasn't like that.
It was really neat to read about Boy Nobody's analysis of the situation he is in. The way he injects himself into someone's life, now to act on the first day of school, whether to take on the role of a badass, a loner, a jock etc.
Sometimes, I had to roll my eyes because problems would be solved way too quickly; things that prompted a "well-that-was-convenient" eye roll from me. This is the part where I really drove home how similar this book was to Person of Interest. On the show, John almost never runs into any problem and even if there was a billion machine guns firing it at him, he manages to avoid being shot and take out half a dozen men with his Nerf gun (not really, he always has a real hand gun that comes to him whenever he requires it). Similar things happen in Boy Nobody, like a perfectly lived-in apartment so no one will suspect you are