The Pretty Little Liars girls are very clearly ready for their close-ups!

Shay Mitchell (Emily) took to Instagram earlier today, posting a photo of herself and her co-stars Troian Bellisario (Spencer), Lucy Hale (Aria), and Ashley Benson (Hanna) making funny faces under a magnifying glass. Along with the goofy pic, Shay wrote, "we be magnified! #upcloseandpersonal #onset #PLL."

Now the real question is, what is a magnifying glass doing on set? Since we take everything as a clue these days (can't fool us!), we're going to assume that either "A" or one of the Little Liars is using the magnifier to investigate something. Could one of the girls have discovered a teeny-tiny clue that needs a closer look? Or, could "A" be trying to exploit the girls by zooming in on something personal of theirs?

Or maybe it's just some innocent on-set fun and our detective skills are getting the best of us, Time will tell, so for now, take a look at the Little Liars having fun on set and let us know which pic you think is the funniest in the comments below.

Source: Shay Mitchell on Instagram

Catch the next episode of Pretty Little Liars on Tuesday, August 20, 2013 at 8 p.m. ET/PT on ABC Family.