Behind Meghan Markle’s ‘bulletproof’ smile during walk with Kate and William – pictures

Meghan Markle may be a former Hollywood actress but her smile is 100 percent authentic, according to a body language expert. But like any of us, Meghan has moments where it’s hard to muster a big grin.

Judi James spoke exclusively to Express.co.uk about those few occasions when that perfect pearly smile droppedJudi told Express.co.uk: “If Meghan has moods then they only really happen behind the scenes. “As her appearance at St Paul’s proved during the jubilee, she has a smile that is both beautiful and bulletproof.

“Not only does it look congruent and authentic on her good days, it can also mask any underlying tensions or sadness when she is suffering internally.” But is this the carefully curated smile of an A-list actress or does it convey true emotion, according to the expert?Judi said: “What makes that smile look even more authentic is that it has barely changed since she was a young girl.

“It is not a performance applied for her royal profile: that upbeat, optimistic-looking facial expression is one she was using years ago, suggesting this is the real Meghan.” However, living in the spotlight means that the public have glimpses into Meghan’s vulnerable side too.

Judi explained: “The problem with such a perma-smile though is that, when it drops, the impact is dramatic.”