how do i get a picture ,signed

Du can either meet him in person at a convention/wherever you're capable of meeting him at oder buy his autograph online (wouldn't recommend that, though - could be faked/it's not as nice as meeting the person and getting the autograph in person).

there is a website my friend told me about where u can get signed merchandise Von chandler Riggs. just Google it.

Somtimes Du meet the person at a masive place where all the celebs go to give autographs and after Du give an auto graph u take a picture and smile.

Du go to the Comic-Con