A mass speed dating chat study in Edinburgh has found the most successful dating chat lines, according to researchers.
One hundred people aged 22 to 45 went on five three-minute dating chat meetings and were asked how they chose who to see again.
Psychologist Professor Richard Wiseman said the experiment showed that 50% of women made decisions about prospective partners after just 30 seconds.
Most successful dating chat lines included 'What's your favourite pizza topping?'
"One in five men had made their minds up about a person within the first 30 seconds of meeting them, compared to about half of the women
The most successful dating chat lines were ones which were impossible to answer with a simple yes or no, such as 'What's your favourite pizza topping?' and 'Who would you be if you were going on Stars In Their Eyes?
The worst dating chat lines included 'I have a PhD in computing' and 'My best friend's a helicopter pilot'.
"It's very difficult to respond to these in an interesting or creative way," he said.
