Ivy is perky, confident, hotheaded, temperamental, romantic and often saucy to those who get the better of her, especially Viktor (though the two actually have a friendship of sorts) and Rocky. She is prone to rash outbursts and is moody: once she discovered Rocky was indirectly responsible for the pig farmers' attack on Lackadaisy, she furiously attacked him with her school notes, though moments later she joyfully agreed to help Rocky scour a field for hidden alcohol. 

Even though she tends to be violent, she is also very sweet and affectionate towards her dear Freckle (for her, more preferably Calvin), freely expressing her infatuation with him and kissing him on the lips more than once. While Rocky's impudence and incautiousness are something of a thorn in her side, she nevertheless cares about him as a friend and became very concerned for him once he shared how his unfortunate childhood influenced his closeness to the McMurray home and how poorly he thinks of himself.

For this you can either reference the canon voice or just pick from the given vocal reference(s)!

Voice Ref(s): 

Her canon voice!

Sarah-Nicole Robles!