Most of the time. I have met people who lied to my face thinking I wouldn't notice but I noticed their stiff body, too much eye contact, and sometimes too much detail. I can also spot a fake smile instantly. When they do all that and I don't know them that well I just stay away from them.
Yes; With a 90% + of certainty.
99% of the time I can.
Yes I do. I have a family member that lies and lies and lies
No, I take everyone for their word or face value; if someone lies, sadly without them knowing it, it is more on them, than me.
Well, I usually just assume someone is lying until proven otherwise..Lol.