Dressed down in casual get-up, it was their beaming smiles that did all the taking.

Suits star Meghan, 36, looked effortlessly chic in ripped denim jeans, a white shirt and oversized black sunglasses. She finished off her look win tan flats and a matching leather bag.

Interestingly, the Misha Noonoo blouse Meghan stepped out in is called the Husband Shirt and worth $375.64, perhaps a sign of things to come?

While Harry, 33, rocked his trademark Invictus T-shirt, jeans and trainers.

The proud prince looked thrilled to have his partner by his side and showing her his other love – the Invictus Games.

Once seated in the stadium the pair were in their element as they cheered on the competitors and chatted to each other.

Olivia Kornal, 16, from New Zealand, who was sitting near them and watching her stepfather on the court, said: “It was amazing, really amazing. They were watching the game and cheering on my stepdad.”

“They kept laughing because the contestants know each other so there was banter between them, they were laughing at that.”

Olivia also revealed Harry was sweetly explaining the rules of wheelchair tennis to Meghan.

“The rules are different to normal tennis as well so they were talking about that. Harry was explaining it to her.”

Despite the excitement surrounding their first official outing, Harry and Meghan made a low-key entrance.

The only clue ahead of time that something big was about to happen was the fact that Prince Harry’s private secretary Ed Lane Fox arrived to the stadium shortly before to prepare two seats.

This latest outing comes after Meghan attended the opening ceremony of the games over the weekend.

Due to the couple not being married (just yet), royal protocol dictates that Meghan couldn’t be seated with Prince Harry in his VIP box.

Meghan positively beamed with pride when Harry took to the stage to address the crowd with an inspirational speech.

The star’s presence at Harry’s beloved games, which he founded in 2014 for wounded service men and women, is the surest sign yet an engagement is imminent.

It’s also believed Harry introduced Meghan to his granny, Queen Elizabeth, at her summer residence in Balmoral recently.

This is a massive milestone for the pair, who have been dating for just over a year, as it marks their first official outing.

Until now, Meghan and Harry have gone to great lengths not be seen together and have only been sighted in public together a few times.

It comes amid the Suits star’s ground-breaking interview with Vanity Fair earlier this month, where she shared fascinating details about her relationship with Prince Harry.

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(Text by bauermedia.com.au / Additional reporting by Natalya Molok)