sometimes you have to interact with someone for a while and God will give a word of knowledge, and then there are the most fun types - when you are walking by a single individual and a word comes suddenly. this happened while 3 of us walked by a guy sitting in an outside cafe. he was pretty shocked - "how did you know"? he actually thought he was doing something to give it away. I explained it was nothing like that. I asked him to put his hand on his neck/shoulder - he did, we prayed in the Name of Jesus and God healed him. he was pain free and very happy. he didn't seem to want to interact any more and so we left rejoicing at the way the Lord did a "drive-by" to exalt the Name of His Son.