A very restricted one: if I mentioned an animal in normal conversation that animal would appear within, say, five minutes. It had to be a plausible animal in the situation — no amount of talking about whales in a town centre would cause one to appear, but when I mentioned a pony to a woman from church while talking on the doorstep after the service one duly came along, pulling a wagon with tourists in it. I’d already suspected I had the power and said something about it after the pony came up in conversation. She didn’t believe me, I said “give it some time”, and just then we heard the hoofbeats.
Sometimes I think I have it in real life too, but that may just be serendipity.