Credit: Instagram

The cast and crew of Pretty Little Liars are hard at work filming Season 4, Episode 6. And weirdly enough, Keegan Allen (Toby Cavanaugh) and Troian Bellisario (Spencer Hastings) were on the set of Ravenswood, the mysterious location of the PLL spin-off Ravenswood, for an episode of Pretty Little Liars.

What were they doing there? Well, we don't know why Toby and Spencer are in another town for an episode, but we do know how Keegan and Troian passed their downtime on set, thanks to a series of Vine posts and Keeks from Keegan and Troian.

Click on these vids to see Keegan and Troian trading sunglasses, showing off their acting skills, and making fun of the soundtrack of every blockbuster movie trailer out there right now. We love how close they are in real life!

Find Pretty Little Liars spoilers here.

Pretty Little Liars Season 4 premieres on Tuesday, June 11, 2013 at 8 p.m. ET/PT on ABC Family.

Rebecca Martin is an editor at Wetpaint Entertainment. Follow her on Twitter @BeccaDMartin.