The best place to get your message through to common people is the bus stand of course, like here in Thirukalikundram, urging mothers to come with their newborn babies to the dispensary for a preventive check up and necessary injections as written in big letters on the wall.
Notice how the baby is illustrated with clothes in the spirit of Tamil chastity: any allusion about sex is considered despicable.
Look how the same wall-picture is looking two years after !