Centineo has some sharp improv skills, too! Two of the most talked-about moments in To All the Boys I've Loved Before (the highly GIF-ed hand-in-pocket spin and moving a bowl of popcorn away from a pillow fight) were improvised on the spot by Centineo. He isn't dating costar Lana Condor, but their friendship is totally endearing. His and Condor's first meeting didn't quite go as smoothly as it could have: she was so focussed on her audition that she turned him down in the waiting room when he offered to run lines! Sierra Burgess costar Shannon Purser revealed that Centineo was her first onscreen kiss. Image Source: Getty / Alberto E. Rodriguez