Answer:
They are many and one, they wave and they drum, used to cover a stare, they go with you everywhere.
Many people own a copy of me. Without me the world would fall.
What type of house weighs the least?
I fly away as soon as you set me loose. People around you may slowly move away once they sense my presence.
I am a million people's wakeup call, gossip party and adrenaline rush. What am I?
The answer I give is yes, but what I mean is no. What was the question?