Men are less likely to talk than women with 54% of women having had a conversation compared to 37% of men.
Homophobic bus ads banned
Bus ads suggesting gay people could be cured have been pulled by the Mayor but only at the last minute.
The ads were supposed to appear on buses across London on Monday but Boris says they're homophobic and can't run.
The campaign by Christian group Core Issues Trust was due to run for two weeks.
It used a slogan that seemed to parody pro-gay organisation Stonewall's recent motto - "Some people are gay. Get over it!"
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A man has been fined £1,800 for flying drones over Parliament, near Buckingham Palace and over football stadiums.
Government to investigate after some restaurants accused of withholding tips
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