Credit: Video Still

Pretty Little Liars doesn't just magically appear on our screens each week. A lot of blood, sweat, and giggles go into the making of our favorite show, and in a recent behind-the-scenes feature, Troian Bellisario (Spencer) and Shay Mitchell (Emily) give us the inside scoop one particularly creepy upcoming scene.

In the video below, the girls break down this sneak peek. The friendly co-stars chat about why the scene took such a long time to film, what they did to up the suspense, and which cute articles of clothing they totally stole for their own wardrobes. Enjoy!

Find more Pretty Little Liars spoilers here.

Catch the next episode of Pretty Little Liars on Tuesday, January 15, 2013 at 8 p.m. ET/PT on ABC Family.