This EXO foto contains
berpakaian seorang, guaman, seluar guaman, pantsuit, orang baik berpakaian sut, and penekan seluar.
There might also be
pakaian luar, overclothes, outerwear, saman perniagaan, sut perniagaan, kotak kot, and peti kot.
According to EXO profile, D.O speciality are Singing and beatbox. Chanyeol is well-known for his beatbox but I've never seen D.O beatbox. This is only the video to see D.O beatbox.