Hey everyone, OP here. This actually happened a few months ago when I was studying abroad in Dublin, Ireland. Yes, I had already had a few drinks. I was also with several other study abroad students who were from Spain and Italy and everyone unanimously agreed that the two men were speaking French. It probably didn't help that we weren't very close to them and it was loud in the bar. The two men were actually from Denmark and they were speaking Danish. I definitely learned my lesson never tried to do anything like that again.