He was definitely expecting some sort of top level attack, considering Peter seemed to be angry, but was impressed when he felt his legs get kicked out from under him. As he fell, Alec jerked his body backwards and did a flip instead of landing on his ass. As he popped back up on his feet, he was smiling, though not quite a smirk (but still pretty condescending to most people). "Okay, okay. So you've got some brains even when you're angry. Impressive."