The Body Language Guy saw Prince William's faint "attraction" to Kate.

The expert noted that William and Kate look at each other "every time they can".

William appeared to bite his lip and glance down at Kate's neck and below.

The Body Language Guy claimed that this is a display of attraction.

The couple's body language is often in "sync", indicating a healthy relationship.

Jesús noticed a similarity in the rhythm of gestures, poise, and even strides.

The couple does not have public displays of affection, but they still look at each other.

People retain their personality even with body language training.

The Body Language Guy's observations suggest that William and Kate have a strong and healthy relationship.