How Does One Contract Hepatitus C I Know The Ways You Can Catch Hepatitus C,but I Cant Seem To Find Ways You Can't Contract The Virus.i.e Toilet

I know the ways you can catch hepatitus c,but i cant seem to find ways you can't contract the virus.i.e toilet - how does one contract hepatitus c

my friend was just diagnosed and I want to reassure HES not contagious to others in the same room ..