He is always curious, always wanting to know everything. In fact, he is so curious he peeks around through the other Smurfs' business, causing problems for everybody.
Smurfs: The Lost Village
He is first seen in the beginning spying on someone in a tree as he is introduced by Papa Smurf. Then he is passing by Brainy's house and peeks in the exploded window asking what was going on, then Brainy, Clumsy, Hefty and Smurfette scold him that it was none of his business and then Nosey walks off. The next day he passes Clumsy's house and asks Papa Smurf through an open window what was going on until Papa angrily slams the window in his face then Nosey walks off. At the end of the film he was seen grieving with the male and female smurfs for Smurfette's sacrifice until she was brought back to life and they all celebrate by dancing in the village.
Nosey is last seen peeking in Jokey Smurf's present until he is punched in the face by a boxing glove on a spring from the box as Jokey is laughing.