1. He's extremely clever, maybe too clever
Phillip Gallagher is smart beneath the surface, witty in ways you could never find in another human being, and clever in every action he takes. His intelligence is effortless, and deep conversation comes naturally when you're together. One of your favorite most complex parts of everything that is Lip Gallagher is the way he's so underestimated. People often overlook the positive things about him and tend to focus on what they've heard instead. His own biggest critic, he tends to be the only person standing between himself and success (besides his sarcasm).
2. He does what he wants
A bad boy through and through, majority of his appeal stems from his rebellious persona. He's a good guy and you know it, but your mom would almost definitely disagree. A lot of details are usually better left out when you're spilling to your mom about how special he is. It's probably better that way. Not that you spent majority of high school trying to spite your parents or anything.
3. He always knows what to say, even if it doesn't come out right
You can't help but find comfort in the way he talks to you. Naturally a smooth talker, Lip Gallagher grew up in the Chicago slums, learning quickly that life is all about talking. Talking your way in and out of different situations, and the hearts of the girls around him.
4. The way you sometimes want to hate him, and more importantly the way you can't hate him at all
Everything Lip does is thought out. A meticulous planner, he does everything for the "right reasons", even if those reasons don't necessarily make sense to you. A heart breaker by design, the risk of involving yourself with him is scary, but always seems worth it, even all this time later.