[That was... odd. Mabel returns her gaze to Dipper and shakes her head at his concern. Whatever just happened, she supposed it wasn't that big of a deal.]

Oh, nothing, nothing... Just thought I saw something. Guess it was just one of those moments where your eyes go abracadabra on you, or something. Anyways, it's no big deal, broseph, so let's go get that candy, 'kay?

[...Despite her words, she couldn't overcome the feeling that someone was watching her. Goodness, is this how Dipper felt all the time?]