Kate Middleton and Prince William always attract public attention.

The royal couple strictly adheres to the royal protocol on public displays of affection.

They have become more relaxed over the years, but still remain formal.

Body language expert Blanca Cobb believes the couple's actions reveal they are "passionate about each other" while respecting royal traditions.

Kate and William have a different protocol for PDA compared to Harry and Meghan.

Kate and William's "synchronicity" betrays their deep level of affection.

Harry accused Kate of "stereotyping" Meghan, but Kate has weathered the storm by ignoring them.

Kate and William still occasionally touch and look into each other's eyes.

The couple's love for each other remains strong despite their formal public demeanor.