Oh, I'll wear of the green and I'll drink of the Jameson's, but I'll also be chanting in circle and sporting serpent jewelry. St. Patrick's "snakes" were the pagans, and I do my Celtic Love reptile style.
When I lived in Pittsburgh, it was an especially excellent day, for my hair of choice in those days was Tori Amos red, and Burgh guys do not care if you're a natural. They will WORSHIP you with free drinks.
Here's a sketch for the eve of our Ostara ritual.