in the start of maw, lucas starts off as center, but if your eyes gravitate to shotaro, it's because taro uses his neck and shoulders in this movement. while the other members only use their necks, taro raises his shoulders as his neck moves creating an emphasis of the movement
in the prechorus that is sung by either doyoung or xiaojun, shotaro is the only member who places his hands behind him. this helps him control his awkward hands during these type of body rolls. not only do we not look at his hands, he again emphasizes and catches our eyes here
in the chorus, despite taro being in the back, he is still eye catching because he puts his light feathery movements in this step. he's the only member who tiptoes and puffs his chest out. his feet is also close to one another to prevent himself from falling
in this part, he's center, but the reason why everyone just falls for him is because of the use of the emphasis between neck and shoulder movements ALONG with his facial expressions. he emits the coolness and cuteness at the same time, so in short we die cus owjdke l o v e h i m