The 24-year-old flits about Dunedin store Slick Willy's, which she owns with her sister, Sarah, speaking enthusiastically about new overseas fashion brands and how far she has come in a few short years.
Dunedin-born Henderson left school at 17 and went to work as a shop assistant at Slick Willy's, at the time a dedicated jeans shop in George St.
She admits she knew little about fashion, but was tutored by store owner Michael "Slick" Collins.
Collins opened Slick Willy's in 1983, fulfilling his passion for denim.
He later moved the shop to its current position, further along George St, upstairs in the Edinburgh Way. Collins died of cancer in 2003.
His wife, Jan, kept the store for a year before deciding to concentrate her efforts on women's fashion store Hype.
When Henderson heard the store was to be sold she jumped at the chance.
The shop has changed noticeably since the sisters took over, importing new brands from Australia and becoming one of the most fashion-forward shops in Dunedin.
Henderson can be credited with many of the fashion features in the store.
She trawls the Internet, looks through magazines and visits Australia to see what the young and hip are wearing.
Sister Sarah runs the business side of things, looking after the shop's accounts and holding Amy back when things get a little extravagant.
Henderson says Dunedin people are ready for cutting-edge clothing and are looking for something different.
And Jan Collins likes what they have done with the store, especially that they have kept many of the original store fittings, including the neon signs.
"Mike would have loved what they have done," she says.
