The three usages are building of complex molecules within the body, generating electricity within the nerves that comprise our nervous system, and also expansion and contraction of the muscles in our muscular system.

You can usually tell if someone is lying if they smile or laugh when there looking at you or you can tell by there tone of voice. That's how I tell if someone is lying.

Just look it up on google I don't know that's what I'm looking for I can't find it anywhere!!!