Hey there! Great question. I had that same thing happen to me once. When i was 14 i was out to dinner with my mom and brother. During dinner, we were being served Mashed Potatoes (the art of eating out for Thanksgiving instead of in, aren't we yuppies?) Anyhow, i looked at my mashed potatoes and thought of the part from that movie "Animal House" where John Belushi says, "let's see if you can guess what i am now" (then he stuffs his face with a huge helping of mashed potatoes and then squeezes his cheeks together so fast that he spits all over the people in front of him) and says, "A pimple! Get it?!"
My mom told me when i brought it up she didn't want to hear that kind of talk at dinner. It stayed with me for some reason, and when we got home, my mom went into the living room and switched on the TV. The first words out of the set, WITHOUT her changing the stations because the TV screen hadn't fully come on yet, were: "Let's see if you can guess what i am now........"
My mom just looked at me and said, "I believe, i believe." And started laughing.
(we'd had LOTS of discussion earlier about me thinking that i was psychic because of a TON of Deja Vu dreams i had been experiencing.)
I think it starts off small and builds up. keep concentrating, and you might be able to actually see full possiblities in front of you, BEFORE they happen.