Shuichi: Is flustered. Just completely flustered.

Kokichi: He's secretly a little flustered by it but openly likes it. Like, he honestly likes the dress. Needless to say, he's werking it.

Kaito: He hates it.

Gonta: Doesn't really mind it. He just thinks it makes him look like a lady and less of a gentlemen.

Ryoma: He's slightly flustered but mostly okay with it.

Rantaro: He doesn't care. He has sisters. He's worn dresses before for princess tea parties.

Korekiyo: If sister wants it sister gets it. He's liking the dress but is slightly embarrassed by it.

Kiibo: He's flustered by it.

Also,

Who's your JD Shuichi?~ ;)

Also, um, I'm doing a Q&A. Ask questions in the comments please!