Board Thread:General Discussion/@comment-24589671-20140721233714/@comment-24674051-20140722192448

"Let it Go" - Killian to Emma upon seeing the potential altercation between Regina and Marion. (Actually, they may use this line multple time, though hopefully not TOO many times.)

"Do you want to build a Snowman" - Henry to Elsa, possibly in Ep 4.2 ("White Out"). Henry will see Elsa for who she is long before anyone else. (The heart of the truest believer's got to be good for something).

"The cold never bothered me, anyway" - I like Killian at the Docks, or just about any other location where it is cold and snowy.

"You're the Love Experts" - Gold to Snow and David after Belle discovers his lying.

"The perfect girl is gone" - wow... that's a tough one. Maybe Gold again (see previous guess).