Zem IOK, posted this lil message on Omnimix. Him being a former philly resident and worldwide graffer knows his shit. Here is what the man/mtyh/legend had to say:
anything you put around you tag is for a reason.
listen up kids....
arrows are used to tell what way you walking on route.or to point to a writer you respect.faces can me you happy sad angry express a moodlittle quote marks around you name top and bottom are called boggiemarks.its to keep people from crowding your print.a halo or circle above or around your tag means your high.the star and piece sigh can mean that if your in enemy linesand dont have beef you show it.