Check out the sorority websites of each chapter at your school and the website for your schools greek affairs office.
All of these
should have all kinda of positives to help impress your parents.
When I pledged I didnt tell my parents. The only way they found out was that my mom was trying to reach me during "Pledge Week", had to spend every night at the house,and she couldnt reach me at my dorm room. Finally got me the last day of Pledge Week and freaked out. Said she thought I might have died or something and was about to call campus officials to come check my room for my dead body.