Install the Guinness Plus app on your phone and you get two free pints at a participating pub (nearly them all), the first straight away and the second when it's your birthday.
My birthday tomorrow...
Wait a second.
how do they know when is your birthday?
Yep, 2 pints!
(http://i.imgur.com/9f4Qou5.jpg)
Two pints!
Long hair on the right? That you Delzep?
I beg your pardon, my hair is much nicer than that