Haha. I saw the Live Arch videos with HyunSeong, JeongMin, KwangMin, YoungMin and MinWoo. here are some of the videos~

YM's and KM's Eye Contact Dancu: http://youtu.be/k6ANe21OBlQ

JM's and MW's Eye Contact Dancu: http://youtu.be/CZ4CspZH_oY

The Awkward Part...Haha: http://youtu.be/HV13DKlT4UM

nanakura (The owner of the last one) has the rest of the Live Arch Videos, I hope you'll enjoy dem. ;)