A liar is a person who is lying, who has previously lied, or who tends by nature to lie repeatedly - even when not necessary.
Can you differentiate them? Clear your mind, rewind what they said, match them according, are they correct?
Bluffing
To bluff is to pretend to have a capability or intention one does not actually possess.
Barefaced lie
A barefaced (or bald-faced) lie is one that is obviously a lie to those hearing it.
Emergency lie
An emergency lie is a strategic lie told when the truth may not be told because, for example, harm to a third party would result. For example, a neighbor might lie to an enraged wife about the whereabouts of her unfaithful husband, because said wife might reasonably be expected to inflict physical injury should she encounter her husband in person. Alternatively, an emergency lie could denote a (temporary) lie told to a second person because of the presence of a third.
Exaggeration
An exaggeration (or hyperbole) occurs when the most fundamental aspects of a statement are true, but ONLY to a certain degree. It is also seen as "stretching the truth" or making something appear more powerful, meaningful, or real than it actually is.
Teach you some steps to test them:
Once a lie has been told there can be two alternative consequences: it may be discovered or remain undiscovered.
Under some circumstances, discovery of a lie may discredit other statements by the same speaker and can lead to social or legal sanctions against the speaker, such as ostracizing or conviction forperjury. When a lie is discovered, the state of mind and behaviour of the lie teller (liar) is no longer predictable.
The "Discoverer of a lie" may also be convinced or coerced to collaborate with the liar, becoming part of a conspiracy. They may actively propagate the lie to other parties, actively prevent the lie's discovery by other parties, or simply omit publicising the lie (a secondary lie of omission).