Even though Nan-ma's blind, she sees things others do not. On weekends, I am her neighborhood guide. Today, I fall silent as we pass the school. I stare at my sandals, wishing Nan-ma could walk faster. Then one of the kids--the one who always carries the basketball--shouts, "Hey, French Toast!" Another kid laughs. "Come on, Nan-ma," I say, pulling her. "The park is just up ahead..."