A flattering picture may get a man noticed - but women can spot ugly men on online dating sites just by reading their profiles.
A study by Villanova University in Philadelphia found that good-looking men were able to convey their confidence and attractiveness in their written self-description.
But less attractive men were detected without the women volunteers even seeing their pictures.
Academics asked 50 women university students to examine profiles and pictures of 100 men aged 22-25 who had posted on a dating website.
They were also asked to consider how confident and masculine a man seemed from his picture.