The body language expert then turned her attention to Princess Charlotte, and noted how the young royal appears to mirror her mothers.
Ms James added: “Charlotte mirrors that sense of adult irony by performing an asymmetric smile that pulls the mouth up at one corner, rather than the smile of childlike glee that little Louis is wearing.
“Kate’s arm is around Charlotte’s waist in a gesture of inclusion and protection but, as we saw on the panto red carpet and as we can see here, this could well be the last time we see an increasingly independent-looking Charlotte appearing in need of any confidence-boosting tie-signs from her parents. “
Ms James also pointed out Prince Louis “looks like the joy of the family”, whilst William and Prince George “seem to have a special bond”.