^ Well that's how it should happen.
Yep, all of my anecdotes that I have posted on this site are true. The UPS guy wasn't an encounter, though, we were just chatting briefly but I could tell he was interested. I remember another delivery guy, quite young, and I came to the door wearing only shorts, and he said, "You look relaxed." I realized later that was a subtle indication of mild interest, but by the time I figured it out he was gone.
A married friend of mine was at my house once about 10 years ago and said to me, "I feel so decadent when I come here." I just giggled at it and let it go, and I thought he might be hinting that we do something, but I didn't act on it. I saw him again recently and he was very friendly and patted me on the back a couple of times, so I think he might still be interested after all these years.
Not every guy will go for it, though, I hinted to the hot Italian guy who delivered bottled water to my house every 2 weeks for years. I even left an explicit note on the bottles once. He never agreed to anything, so nothing ever happened. On the other hand, he never stopped being friendly and polite either. He wasn't interested (he was also married) but he wasn't insulted or offended by it either; in fact I think he was flattered by it.