They can be nervous.
Check your deodorant.
Usually it means that the person your talking to is bored so maybe you should change the subject and talk about something they like to talk about.
Your traction control is probably off. There is probably a button for it. It blinks to warn you that you have the traction control option off. It may also mean there is a problem with the system.
It like that why
To know what the person is talking about.
cuz alot of blinks are toxic
It means to have a nap/sleep.
It means the person is talking nonsense.
you disconnected from the person you were talking to
"Doodles" are random little scribbles or drawings, a person makes, usually while concentrating on something else, like talking on the phone, etc.
back bitting You might mean talking behind someone's back, and ways to describe that are gossiping, criticizing, "talking someone down," or "dissing" someone... could be betrayal or subversion as well. If you mean actually just standing behind someone and talking, then perhaps grumbling or murmuring or ... being passive-agressive. Often, the term "two-faced" is used to describe a person who talks poorly about someone behind their back, while acting like their best friend while in their presence.
that they are lieing