[ Her eyes glint right back with a mischievous quality but she gasps as if offended before moving the box away just out of his reach. In reality though Sylvain's arm reach alone could probably just pluck the box from her without much effort considering he has a full foot on her. ]

You'd really say that to someone that's gifting you something out of the goodness of her own heart? Is this how you normally react to having presents given to you?