London: Recently named as the Hollywood’s best dressed star, Emma Watson finds dressing up a difficult task.

Watson, who played the role of ‘Hermione Jean Granger’ of Harry Potter, was generally dressed in a school uniform in the Hollywood flick.

Now at the age of 21, ask Watson who played the character and she says that dressing up is quite a difficult task.

She prefers a ‘less is more’ approach but says that it is difficult to look age appropriate, reports say.

"I try to dress age-appropriately, which isn't actually that easy when obviously high-end clothing is designed for women who are older than I am” Watson said.

 "It's a fine line to tread between looking smart and looking ready to go on a red carpet but also looking like I'm 21. It's quite difficult" she added.

Watson who is the face of Lancome cosmetics has been heavily involved in the advertising campaign.

"It's funny, the guys at Lancome were like, 'You need to be directing, Emma.' I had ideas about every aspect. I'm sure I drove them insane. I was involved in the concept for the ad and the tag line, 'Catch my heart if you can',” she said.

"The hat in the ad was my hat, which I bought at a flea market in Paris. I was very involved in the script. It's been really fun for me" Watson added.