The newlywed was seen laughing lots and giggling in her first royal outing with the Queen-and without her husband.
The Queen and the Duchess of Sussex, as Markle is now known, joined the rest of Britain in observing a minute of silence at midday to honour the victims of the Grenfell Tower fire on the anniversary of the London blaze which killed 72 people.
Earlier as well, the Queen had loaned Meghan the Bandeau tiara of Queen Mary from her personal collection to wear at her wedding to Prince Harry.
Meghan even touched on their differences, and how she saw them as a benefit to the foundation. Still, the replica dresses are sure to make any bride feel like royalty on her big day.
Markle went to Cheshire with the Queen on Thursday for a series of engagements.
Speaking to Vogue, McCartney explained: 'I knew when I was working on the dress with Meghan that it was handsome.
According to close friends, Markle is having the time of her life and she recently accompanied the Queen at several local events in Chester. "Meghan's look was definitely reviewed by Royal advisers, so it was not an oversight!"
Kensington Palace then announced Markle would be walked down the aisle by Prince Charles, Harry's father.
She was invited to stay overnight in the Queen's private train, suggesting the two have a true friendship blooming.
From her nude nails to her sleek, wavy blow dry, Meghan paid homage to Kate's style cues throughout the years.