The singer, who has dated the likes of Caroline Flack and Made in Chelsea star Caggie Dunlop, finds it attractive when someone turns him down.
"The fun part is the chase, so if you speak to me, play a bit hard to get," he told Top of the Pops magazine.
"I think it's attractive when someone turns you down. You don't want someone to say yes straight away, do you?"
He added: "I think you have to be cool to be a good flirt - and I don't think I'm very cool."
It was recently reported that Styles wants a date with "ultimate cougar" Carol Vorderman.
Watch One Direction's video for 'What Makes You Beautiful' below: