Being a camp counselor is all about leadership, give the interviewer all of your experiences as a leader in the past. Whether it be involvement in a small book study club, or being the captain of your football team, anything counts! If you feel you have never been a leader in any type of situation, you would be surprised. It could be a leader amongst one person, maybe you gave that person advice? You saw a situation where someone needed guidance or help, and you took charge, it doesn't matter if it was only with one other person or a group.