Prince Harry and Meghan Markle’s PDA at the closing ceremony of the Invictus Games has been the talk of the town.

The couple, who made their first joint appearance at the event, were seen snuggling up to each other in the Royal Walks.

Meghan's mother was also present, which indicates the seriousness of their relationship.

But what did Harry's body language reveal about his feelings towards his beau and his imminent engagement?

According to an author and body language expert, the couple's in-love signals were undeniable during their public outing.

However, with more natural and relaxed shots of the couple, we get a chance to see how their relationship works.

With Meghan's mother sitting nearby, this was a family outing of sorts for Harry.

When intimacy signals increase in sight of your potential mother-in-law, as Harry's do here, it's pretty likely that you've made your intentions clear privately, even if nothing has yet been announced publicly.

During their walkabout, there were many touch gestures that looked truncated.

However, in these poses, we get a glimpse of a more spontaneous Prince in terms of touch, kissing, and looking besotted.

Overall, Meghan's body language signals show total engagement.

She gazes at Harry constantly to gain his full attention and tune into his thoughts and feelings.

Her apple-cheek rounded smile suggests that she has found the one and is confident and happy about their status.

On the other hand, Harry's body language is less stable.

There are moments when he looks engaged and totally smitten but moments of disengagement too.

When he talks to her, he is animated and flirty, but this intensity is interspersed by poses that can make him look strangely isolated and reflective.

There is a slight suggestion in these poses that Meghan might need to keep engaging her man's interest.

When she employs strong eye contact and touch rituals, he responds with romantic and loving behaviors.

However, when she pauses in her flirting, he does look as though he's going off the boil quite quickly.

Meghan's eye engage looks flirty and loving, and Harry responds to this non-verbal flattery by using some super animated hand gestures to make her laugh.

Their mirroring is quite intense here too, suggesting like-minded rapport.

However, there are moments when Harry's body language might suggest he takes all the time he needs before making a lifetime commitment.

During one of their outings, Meghan was at her flirtatious and flattering best, laughing at Harry's jokes and making sure her laughter ends in a touch ritual as she places the back of one hand on his chest to signal ownership.

Harry's flirting here is as strong but less active, his grin as he sits back and chomps on the straw, and his intense eye gaze shows he's teasing as well as flirting.

A cup chin gesture like Harry's here is normally a sign of boredom, while Meghan sits bold upright applauding, which is normally a contagious ritual.

Harry sits slumped at his table gazing into space.

The couple's mirroring is quite intense, suggesting like-minded rapport.

However, there are moments when Harry's body language might suggest he takes all the time he needs before making a lifetime commitment.

While there is no doubt that these two are in love, moments like this might suggest that Harry needs to take things slow.

In conclusion, Prince Harry and Meghan Markle's relationship seems to be progressing steadily.

While Meghan's body language signals show total engagement, Harry's body language is less stable.

However, the couple's mirroring suggests like-minded rapport, and there is no doubt that they are in love.