In telling stories about acquaintances, should I be explicit with names? It helps follow the story, makes it more personal, and follow up stories paint a better overall picture. On introductions, 'Oh, I've heard a lot about you!' is great, too. On the other hand, sometimes you end up telling stories that may be slightly embarrassing for some concerned. In being explicit with their names, you may end up making the recipient less likely to open up to you (or I would assume so: I don't remember if I ever decided to be less open to someone merely because that, even after being surprised by hearing a story back from a third person. OTOH, I did definitely think deeply about my relationship with people who have a habit of shit-talking people behind their backs.)

Any other considerations? Which would you consider more appropriate?