Purchase or spray paint a pair of brightly colored sneakers. B.o.B. is known to wear shoes as extravagant as bright oranges or yellows. Wear them with the jeans tucked into the tongue of the sneakers.
Wear a pair of dark stylish jeans loosely around the waist and the rear. Compliment them with a white belt.
Purchase a military-style shirt, with buttoned straps on each shoulder. When worn by B.o.B., these shirts often feature bright pastel colors.
Compliment the shirt with a leather jacket, varsity jacket, cardigan or track jackets. These top layers usually are characterized by bright colors or large logos.
Add large chains and watches, as well as a pair of stylized sunglasses (such as a white pair) to complete the look. Add a nametag, a microphone or some fake tattoos so that people can identify you and your costume.