It means that your ears, your eyes, your body and your feelings are all focused on that person at the time. You and your friend gradually share interests, feelings, and goals. Much of this is done by being together physically. Your physical presence shows your friend that you care about him. It affirms that he is important to you.
Friends focus on friends.
Friends attend to friends. Focusing Focusing means all of your physical and psychological attention is directed toward your friend during the entire conversation. Your body language is good. You are facing and slightly inclined toward your friend. Your facial expressions show interest.