hand on head-- its called "Mano" here, like kissing the hands of the elders.. but not kissing anymore just holding the right hand of the elder and placing it on your forhead.. its the best sign of respect.. they will admire you..
i taught Jay how to make "mano" and yep he learned so well.. its a sign of humility, kindness. respect and gentleness. my mom & my lola and all others hehe were very happy of the kind act Jya had shown especially hes foreigner... but anyway.. just do it and youll get the respect from them also...