2 or more of the following: Cheap intake, fart can exhaust, no name header(s), altezzas, sticker(s) advertising car parts, vehicle make/model written on the car more than once, exterior neons of any sort, windshield washer LEDs, large non-factory spoiler, chicken wire anywhere, more than a single pair of fog lights, hood scoop not leading to an intercooler, garish body kit, etc.
Also, ricers do not maintain their cars or change their oil and think Corvettes are "gay". Ask a ricer what his 'DOHC VTEC' sticker means and then laugh at his incorrect response.