Actually, people that are born in the same month are different because it's not the Sun sign that people generally see, but actually our ascending is how people perceive us.

Your Moon and Ascending signs are determined by which house the Sun sign is in when/where you were born.

For instance, I am a Leo/Virgo cusp....I was born on the borderline...Leo side. But my moon is Virgo and my Ascending is also Virgo, so more than likely, especially when someone first meets me, they will see Virgo atributes in me, and not necessairly my Leo.

Your Moon sign determines your emotional personality. If someone were to have Cancer for their Moon sign, they would be a very moody emotional person, often times holding things back, and withdrawing in times of emotional crisis.

I study Astrology, but I am no means an expert. Honestly, my specialty is in Herbology.

Peace, Crystal