If you've really never played golf at all I wouldn't advise you to go out on a golf course with anyone, you'll most definitely make a complete ass of yourself. Anyone with a handicap under 30 is fairly capable. I'd definitely advise trying to get out on a pitch and putt course or something and hitting the driving range to see if you can hit the ball any way consistently and any way straight.
What part of Dublin are you based in? I know the Spawell in Templeouge has a driving range and do lessons, there's also a fairly crappy pitch and putt that's ideal for hacking around.
*I realise those probably aren't practical tips for surviving a round of golf, I suppose one of the most important thing is don't try and hit the ball as hard as you can, just try to swing smooth and straight, even a half swing hitting it relatively straight will be better than trying to hammer it and sending it into the nearest ditch.
I'm sure Youtube will have some useful video lessons on the basics.
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