Ask anyone in Dublin to recommend a pub with traditional Irish music, and you’re likely to hear about The Cobblestone. For our last World Cafe dispatch from Ireland, we pop into the cozy spot in Smithfield and can immediately see why this place is beloved by locals, tourists and musicians from far and wide. It’s warm and welcoming with a big, long bar filled with people leaning over each other and laughing and clinking glasses. And at the front of the room there are about a dozen musicians packed into this little nook — it’s a jigsaw puzzle of fiddles and guitars and pints resting precariously between elbows on tables. Tom Mulligan, who has owned the pub for 30 years, says,“Conversation is the greatest thing that was ever invented.” Mulligan hopes people talk to each other as much as they listen to the music at The Cobblestone. He also tells the story of that time Steve Martin popped by to play some banjo and left on his private jet. Come along for a pint, in the player.