Leighton Meester always gives her own twist to an outfit.

My essential fashion item is a great pair of heels. They just give you that extra oomph.

The 'Gossip Girl' actress says it's important to give a unique look to clothes so whenever she wears something she always makes sure she jazzes it up.

She said: "My biggest fashion tip is take something really basic and make it your own. You could be wearing jeans and a T-shirt but if you add heals that are your style, they completely change your outfit. It's the same with a little black dress - if you add an awesome necklace or a headscarf or a bag, that makes it special.

"My essential fashion item is a great pair of heels. They just give you that extra oomph."

Leighton, 25, also revealed how she feels and her sexiest when she's in simple clothes and no make-up.

She told LOOK magazine: "I can feel sexy in jeans and a T-shirt. Not trying to be sexy is really sexy. I actually think I'm prettier without make-up. It's just about accepting what you love about yourself."