Members of Mara Salvatrucha, like members of most modern American gangs, utilize a system of hand signs for purposes of identification and communication. One of the most commonly displayed is the "devil's head" which forms an 'M' when displayed upside down.
Crip gangs’ style of dress favors the right-hand side. Members and associates will roll their right pant leg up, wear their hat turned/tilted to the right, and “flag” (throw their gang signs) to the right. Their primary hand sign is the Crip “C,” and their primary color is blue.