because they can not remember the words
The same reason some young people hum...they want to.
Hum is the smallest town in the world, there are only 23 people. Hum is in India.
People can talk while they are eating, but not when they have food in their mouth. Just ask them politely not to talk with their mouthful. That's it.
It blocks the air ways.
You need to check the front wheel bearings, while driveing down the road stright turn the steering to the left and then to the right and listen to see if the hum noise changes, if not then both bearings are bad left and right sides. If the hum noise changes while turning to the left then right front bearings are bad , if hum noise changes while weaven to the right then left bearings are bad.
The hypothesis is the test that people are taking while eating .
"You" is a personal statement, but eating disorder do affect a large variety of people. An estimated 1 in every 200 people suffers from an eating disorder, while about 1 in 5 have some sort of disordered eating habits.
it's the transformer. that you here. humming. if too noisy you can replace it. and that should solve your problem. its just some are not built right and they tend to hum.
Drunk drivung,eating while driving,or talking on the phone while driving
All electrical fuel pumps hum while running. As they get older they may get a little louder but it's normal.
It's a sign that they are happy. They probably do it for fun.
in Hinduism many opinion ban eating meat totally while some allow eating meat. But all people forbid eating beef or cowmeat.