Kristen Stewart Attempts a Smile, Shows Off Lip-Biting Skills at ‘The Yellow Handkerchief’ Premiere (PHOTOS)

Kristen Stewart should really see a professional about that whole lip-biting thing. That’s going to lead to problems somewhere down the line.

The 19-year-old Twilight beauty showed off her signature move on the red carpet on Thursday, as she attended the premiere of her new movie The Yellow Handkerchief at West Hollywood’s Pacific Design Center.

The movie, which follows three strangers as they embark on a road trip through Louisiana, co-stars Eddie Redmayne, William Hurt and Maria Bello. If you haven’t already seen the trailer, you can bask in the cinematic genius here—but make sure to check out our photo gallery from K-Stew’s big night first.