The new American Girl Place store opened Wednesday at Watertower Place, positioned to cash in on its proximity to mall traffic. Five store entrances lead shoppers into a space that is 30 percent larger, newly festooned with a doll T-shirt design shop, personal shopping rooms and a “streetscape” of doll service shops (shoppes?) like an ear piercing store and a beauty salon. Already the largest of the retailer’s flagship stores, Chicago’s American Girl Place has generated nearly half the cumulative traffic of the nation’s five retail stores since 1998 – 13 million visits. The move across the street will create 50 new full time positions and 120 part-time holiday positions.