It's the sparkle in the eye, the touch of a hand that shows the world that you're helplessly in love with a person. For Prince Harry and Meghan Markle, every smile, touch and gesture was a sign of are they or aren't they in love?
Even on their wedding day, the press and TV viewers looked on with adoration as they said "I do".
If you still have your doubts that it's true love between the Duke and Duchess of Sussex, we take a look at five times they showed the world that they were head over heals in love with each other.
Their first official kiss as husband and wife
That adorable engagement photo
The first time Harry sets eyes on Meghan as she walks down the aisle towards him
But our personal favourite is the moment nervous Harry assures Meghan while rubbing her hand during the wedding ceremony.
Picture: YouTube screenshot