Instructions:One pint of Guinness Draught or Extra Cold must be bought at full price. Excludes Scotland and Ireland.
To get this offer, you need to drag any of the 'friendly gestures' from the left of the Facebook page onto a location on the map. After that you'll be given the option to print off your voucher.
As an alternative to a free pint of Guinness, you can get a standard draught Pepsi, Diet Pepsi or R Whites Lemonade, but you must still buy one pint of Guinness Draught or Extra Cold to get it. Guinness is generally £3 - £4, but prices will vary per location.
spotted on martins restaurant page on mse