(Cover) - EN Star Style - Rose Byrne admits she often switches between feminine and masculine clothes.

The Australian actress has appeared in a string of hit movies such as Get Him to the Greek and Sunshine, and she also stars as scientist Moira MacTaggert in the X-Men: First Class movie, which is due to be released this summer.

The 31-year-old says her fashion tastes often depend on the character she is playing at the time. She added that her current roles mean she often alternates between light and bolder clothes.

My style shifts between boyish and feminine, depending what Im working on. Right now, Im very dressed up [for the fourth series of the TV show Damages], so off-duty Ill wear an animal-print skirt of skinny jeans, she told the British edition of Vogue magazine.

The star went on to reveal she believes the colour of clothes can greatly influence the person wearing it. She thinks bright shades such as yellow are perfect for inducing happiness.

A pop of colour can really lift your mood. If the character I played in Troy grew up, moved to Brooklyn and married a skateboarder, she would wear a bright yellow Marc Jacobs dress to her wedding, she added. (C) Cover Media