First, I have to say these ‘Secret of the Day’ things are pretty cute. Enjoy!
Junsu: Because Junsu is such an optimistic person, he plays a very important role in relieving the stress of the other 4!!
Yuchun: Yuchun will feel lonely if he eats supper alone, so he always forces the members to eat with him.
Jejung: If Jejung gets drunk, he becomes really cute! (*db note: when is he not cute? 
*)
Changmin: Changmin bathes really fast; if you get close to him, you’ll find that he smells really masculine.
Yunho: If he becomes a girl in his next life, Yunho wants to be able to cry as much as he wants.
Source: [baidutvxq]
Translation credits: mandasoh@iscreamshinki.net