if is a boy, any relatives have boy around their age ask them to show how boys go to pee, and then you tell them this is the way how boy to go pee pee ... do not force them ......when they are comfort .. they will go try stand up to pee by themselves .....
my son is a MAY boy, when he start PN class... he still use diapers ... and start his training on October .. and he can do it in 2 wks!