Quite often you will also notice somebody who you think that you may have spoken to in the past; however as a rule they won't recognize your identity, unless of course they have engaged in lots of message passing before or they have had a live chat with you. Even when somebody knows your voice, they might not need to have a chat with you ever again since they are encountering fresh callers where they can pretend to be somebody apart from whom they really are or who they've been before.
There's no limit to the roles that one could engage in while you're chattering on the free chat line. Think about any kind of event which got you excited prior to now and make use of that for a prop. To accompany any kind of persona that you're making up, you will soon be able to manufacture lots of stories and fantasies that go along with who you are pretending to be on these phone chat for singles lines.