When receiving text messages or reading posts of one person to another, human often perceives the reading as a voice in their head. We choose a voice of someone else that seems to have the same nature that fits with the message contain and use that voice. This behavior cause we to think that the conversation is taking place in just our heads, just like when we play out how a conversation might go. Because of these behaviors, we feel as if we are talking to ourselves, rather than conversing with another person.