Re: international stage fright (a new thing)
don't worry too much about playing around Ireland, its just like any where else. I've always thought the American standard of live (local) bands was higher! You won't get boo'd or bottled, everyone will either be drinking and watching you, or drinking and talking with their mates ;)
Where abouts are you playing?
check out my band Escape Fails - download free tracks under Creative Commons at BandCamp