we demo to dear son and during the 1st few month, he will just drank the water w/o spitting it out. so we stopped asking him to rinse his mouth for sometime since the toothpaste he use does not require rinsing. But one day he just start to rinse his mouth and spit the water out. I think he saw us brushing out teeth daily and he picked up from there.
We never clean his ears before. his ear wax will dropped out once in awhile. I dare not take the risk to clean the inner, in case we hurt his ears. =)