Throughout its time on the air, "Friends" featured a number of high-profile guest stars, and one such star was Winona Ryder. She appeared on an episode in Season 7 as one of Rachel's former sorority sisters, and her scene with Gunther gave us one of the best scenes with the coffeehouse king. 

During the scene in question, Ryder's character goes up to Gunther, hands him some cash, and asks for a pack of cigarettes. "Oh, we don't sell cigarettes, but they have them at the newsstand across the street," he tells her, handing her money back. Rather than take her cash, Ryder thanks him, presuming he will go get her the cigarettes himself, and his confused facial expression is pure gold. And then being the nice guy he is, Gunther goes out to get the cigarettes.

But what makes the scene that much better is knowing that James Michael Tyler had a little crush on Ryder. "I had kind of a crush on her so it was great to [have] her come in," he told Entertainment Weekly. "[But] she was fantastic, and I've always appreciated her as an actor." We love to see it.