COOL Diamond Engagement Rings at Astreins Diamond Wedding Bands at Astreins The pullover sweater has a zip neck. The stonewashed sueded pants have multi-pockets. Both in light toned neutrals, from Marithe & Francois Girbaud. We feature original designs not available elsewhere All jewelry always 20% OFF ASTREIN'S 120 W. Maple • Birmingham • 644-1651 Mon.-Sat. 10-5:30 • Thurs. & Fri. 'til 9:00 AE/MC/VISA Isinammir 122 FALL '87 because some of my friends wear it." Both Beth and Sue, a fashion consultant, enjoy clothes. However, they do have minor disagreements when it comes to Beth's clothes. "Sometimes my mom thinks something will be good for me and I don't like it," says Beth. "For instance, she saw bell bottoms in the Saks catalog and told me they would be big for fall. Not for me, they won't!" Bruce Schweiger, M.D., an Ann Arbor child psychiatrist, sees teenage buying habits as going along with the pre-teen and teenager's need to assert his or her own independence. "Teens are very conscious of