Heat oven to 375°F. Separate dough into 8 triangles. Sprinkle a heaping teaspoon of chocolate chips on wide end of crescent triangle, and roll over once to form brim of hat. Form the rest of the crescent triangle into hat shape. Repeat for remaining crescent triangles. Place on ungreased cookie sheet. Bake 9 to 11 minutes or until golden brown. Using fine mesh strainer, sprinkle crescent hats with powdered sugar or cocoa; serve warm.