The best time for men to approach women and get a positive response from them may be during the fertile period, when the fair sex seem to lower their guard, a new study has revealed.
To reach the conclusion, researchers selected handsome young men and asked them to experimentally hit on women on a street corner to determine whether fertility affects receptivity to male advances.
"These studies did not focus on women's behaviour. It's the first study to test the role of the menstrual cycle on courtship request, in a real social context and not in laboratory," New Scientist quoted Nicolas Guéguen, a psychologist at the University of South Brittany, France.
To bridge that gap, the researcher asked five handsome 20-year-old men - winnowed down from a larger group rated for attractiveness by 28 women - to ask unsuspecting females for a date.
On sunny summer days, the hunks approached the first young woman they saw on a street corner and delivered a standard pick-up line: "Hello. My name's Antoine. I just wanted to say that I think you're really pretty. I have to go to work this afternoon, and I was wondering if you would give me your phone number. I'll phone you later and we can have a drink together someplace."
If the woman gave their number, "Antoine" then said: "See you soon," and left.
If the women declined, they were given a cheery standard response: "Too bad. It's not my day. Have a nice afternoon!"