Well, after listening to the whole album I like the whole thing. It really reminds me of their first album.
Anyway, my favorites would have to be Secretly Secretly, Magic, and Take a Bow. I really love Magic, it's such a different feel from their other songs. Secretly Secretly I really love too, it reminds me of Us Two from their first album. hehehe. But I voted for Secretly Secretly. KARA Jjang!!