Failte!
Now, are ye CATHOLIC (nod, nod) or one o' dem bastard Proddys? (disclaimer: this question is unbiased and has not been slanted in any way. If you say it has, why then you're nothing more than a godless proddy fecker!)
And may I just also add
DRINK!
Fight like Irishmen! (ie stumble around in a drunken haze, fall against tables, swing a few ineffectual punches, find out yer grandma knew my grandda, buy each other a drink and start singing "Boolavogue" and "Ole ole ole ole!"