Have a few drinks but don't overdo it. Those Guinness zeros are actually tasty and very like the real thing. Have a few of those every so often :) You can be prepared with different ways to say your name if you're asked. For example instead of just saying your name, say "my name's ____" or "I'm ___ ". If you're nervous about someone asking you your name while talking, another thing you can do is YOU take the lead. Say "my name's ___, what's yours?" It can be a way of getting it done with, and also helps put you in control of the situation. Try to enjoy the music as well while you're there :) I live up north in Belfast. Hope you have a good night!