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Simply does it: Elizabeth Olsen wears a black tunic with matching trousers at JFK airport on Thursday

She’s known for her modest style, and Olsen’s travelling ensemble seemed the perfect choice for a flight.

But on Tuesday she showed off her sculpted legs in a buttoned charcoal mini skirt as she made a promotional appearance at the Apple store in New York’s Soho neighbourhood.

The 26-year-old actress still appeared sophisticated, teaming her conservative skirt with a loose black turtleneck jacket.

Trip: She covered her eyes with a pair of black sunglasses and carried a wide-brimmed straw hat in her right hand and a houndstooth weekend bag in the other

Leggy: Elizabeth showed off her toned legs in a charcoal mini skirt as she attended a meet-and-greet at the Apple store in New York City’s Soho neighbourhood on Tuesday

Sophisticated chic: The actress paired her mini skirt with a black turtleneck and peep-toe pumps

The blonde beauty also elongated her toned legs with a pair of shiny peep-toe pumps, as her hair was styled in a chic updo.

Elizabeth wore a light palette of make-up, merely enhancing her natural beauty.

The younger sister of twins Mary-Kate and Ashley Olsen radiated while signing autographs for doting fans.

The actress was at the tech hot spot for a meet-and-greet with her Avengers: Age Of Ultron co-star Aaron Taylor-Johnson.

Aaron, 24, plays Elizabeth’s on-screen twin brother Pietro Maximoff AKA Quicksilver.

Also starring Samuel L. Jackson and Jeremy Renner, the plot sees Tony Stark (Robert Downey Jr.) try to jumpstart a peacekeeping programme.

Spring beauty: The star wore a light palette of make-up and white nail polish

Animated: Elizabeth was not shy about expressing herself as she took the stage to discuss her latest film

Prepared: The stars were treated to water bottles during their presentation

But when things go wrong, the superheroes Iron Man, Captain America, Thor, The Incredible Hulk, Hawkeye, and Black Widow have to stop villain Ultron’s destructive plans.

The new blockbuster is the sequel to 2012’s The Avengers, which is the fastest film to pass the $1 billion mark in box office takings.

Avengers: Age of Ultron is expected to hit UK cinemas on April 24 and in the US on May 1.

Tuesday evening, Elizabeth vamped up her look to attend The Cinema Society & Audi screening of Marvel’s Avengers: Age of Ultron at SVA Theater.

Famous family: Elizabeth is the younger sister of mini moguls, Mary-Kate and Ashley Olsen

Co-stars: The actress was joined by Aaron Taylor-Johnson, left, who stars with her in Avengers: Age Of Ultron

Vamp: Elizabeth switched up her look to attend The Cinema Society & Audi screening of Marvel’s Avengers: Age of Ultron at SVA Theater later in the evening