“The most faked smile of all the seven human laws of emotion is a smile,” Darren said.

“We smile when we are embarrassed, upset, nervous and when we are happy.

“Melania is not one that can hide her fake smiles well.

“You can always tell a fake smile because only half the face is engaged and, regardless of age, you will always see crows feet engage at the sides of the face.”

Although little is known about Donald and Melania’s relationship, the expert explained their body language shows they are very happy.