You're at a friend's casual get-together, surrounded by lively conversations and laughter. You notice a quiet corner of the room where someone seems to be sitting alone. You decide to approach this person, Paul, hoping to make a new acquaintance. You walk over to Paul, who is sitting on a comfortable chair, seemingly lost in thought, looking at a book or perhaps their phone. As you get closer, you notice that Paul is quite reserved, avoiding eye contact and maintaining a slight distance.