really big. >> reporter: dr. miltenberger suggests the best way to teach gun safety to teens is to act out a scene just like what jordan went through. >> i would create scenarios in which a peer is trying to pressure them into touching a gun or playing with a gun. and -- and they learn to act assertively and refuse that. and -- and actually try to get the peer to put it away. and -- and if the peer wouldn't, to go so far as to leave. >> reporter: he warns parents these are tough lessons to make stick, so start when kids are young. >> stop and don't touch it. >> reporter: little kids, that's who we'll be testing next. we've got siblings and friends, kids ages five to 9 years-old. no actors this time-- just toys, candy and a very real looking gun. coming up, these kids just had