But yes, my spidey sense is tingling all the time (Ha, I've never said that before. Anywhere)
I think it's also about how attached you are to the persons you can have these experiences with. The closer the connection, the more probable it is that it's going to occur. In my case, I have a lot more of this with people I'm closer to. It happens when I'm suddenly finding myself thinking about those people. I get a strong feeling that a phone is going to ring and it's going to be my mother or brother or some of my friends (and not only because we talk regularly) or I'm thinking about one of my cousins and that he/she will visit that same day. Or even with e-mails, I get a feeling that I should check my mailbox. I'm correct every time.
I've had quite a few times happening to me that I listen to the radio, a song pops up in my head and it's exactly the next song that starts to play.
I don't consider any of this as something supernatural. It's funny to experience something like this. I love those little moments.