During the meet and greet, the Duchess of Sussex pulled a small girl from the crowd and gave her a hug.
Two years ago Meghan filmed a short message thanking Ms Sergel for her support, in which she waves and blows a kiss at the camera to her.
Meghan's Korowai was custom created for her visit by Norma Sturley, 66, an elder of the Ngati Whakaue tribe. While acting was her full-time job, she spent a lot of her time off-screen inspiring people - especially women - through her social media accounts.
"I didn't expect her to even know who I was at all, I'm just so blown away by everything that happened".
She said the Duchess spotted her because she was holding a sign saying "It's Hannah from Instagram".
"She gave me a hug which was incredible - when I first saw her, I cried".
Looks like she's doing all she can to prepare for her upcoming addition.
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The most important thing is to win as a team and the game was brilliant from everyone". "It's a great record and I'm very proud". It always helps a player if you play a good game - it helped us tonight and helped him.
"She would tell me to do well at university and encourage me to be myself".
The New Zealand Pounamu necklace in a Maori design by Kiri Nathan was gifted to her by NZ Governor General Patsy Reddy.
Hannah's mate filmed the moment and it's since been shared on Twitter where it's picked up thousands of views.
The volunteer worker was so moved by the encounter, she joked on Twitter that the Prime Minister of New Zealand, Jacinda Ardern, had to comfort her at the event.
Meghan's debut trip outside the United Kingdom and Ireland as a duchess was headline news across the world - and the interest rose further when Kensington Palace announced she was pregnant, on the eve of the 16-day visit to Australia, Fiji, Tonga and New Zealand.