Men are less likely to talk than women with 54% of women having had a conversation compared to 37% of men.
Strikes 'Could Lead To 12hr Delays'
Airlines are warning next week's public sector worker strike could lead to 12 hour delays for passengers arriving at Heathrow.
Airport operator BAA say delays at immigration could be so long, passengers might have to be held on aircraft touching down at the airport.
"This in turn would quickly create gridlock at the airport with no available aircraft parking stands, mass cancellations of departing aircraft and diversions outside the UK for arriving aircraft," BAA added.
British Airways and Virgin Atlantic have both announced that the normal charges for rebooking flights will not apply for those not wishing to travel on Wednesday 30 November 2011.
Millions of public sector workers angry over planned changes to their pensions are expected to walk out.
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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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