People in general enjoy telling others whom they saw, talked to, or know, especially if it involves someone famous or well-known. It could be that they sighted some celebrity eating at the same restaurant, standing in the same line at the airport, or even got to talk to one at some show. These were considered special occasions and people love to let others know about them because they feel somewhat special about themselves.
Please don't be disappointed if I tell you that the person I know, most intimately, is the greatest of them all ~ in fact, he is the creator of the universe and all of us: he is Jesus, the Savior. I shall tell you about him only out of love, and I do feel special about myself, but in a different way.