Well, Evan supposed that as far as lip licking went, Ginny certainly appeared to be better at it. Then again, he had never thought about it as an action he had to become good in. It wasn't quite like maths. Also, Evan was pretty sure maths was genuinely easier to comprehend. "How can the same action of seductive lip licking be less or more seductive depending on the intended recipient? It's still the same action," because it was. Evan was completely and utter like failing to understand the surrounding elements for a seductive lip lick. It seemed a lot like trees falling in forests with no one around.
Nonetheless, Evan did mimick Ginny's actions. He even gave a good go at the lowering of lashes. "Like this?" He asked before licking his lower lip and then adding the bite just for good measures. Evan was really unsure what he could use this information for that wasn't just freaking people out on the bus.
He paused when Ginny said that she did not know all the variables in effect when one was not attracted to the other person. Well. Perhaps that's not exactly what she had said, but it was what Evan had heard.