Can U Smile (lol standing next to L has infected Sunggyu with voice-cracking-itis)
How would Infinite members wake someone up? Sungyeol would dolphin-screech them to death evidently. Oh you. And Dongwoo I can recognize your laugh anywhere.
Kim Hyung Joon V.S. L Octave Battle
Animal Imitations (what I got from the Youtube comments, correct me if I'm wrong, Woohyun: dog, Sunggyu: cat (lol obviously) L: cheetah apparently, Sungjong: elephant, Hoya: lol spitting camel, Sungyeol: crow, Dongwoo: seal)
Source: Jaghetermary4, 2, 3, 4, 5, 6, 7.
Edited to add the rest of the videos. Additional credit also added.