The two words are more or less synonyms, so probably the best answer would be "by definition."
The likelihood that someone who is hiding something is also lying about it is generally high, as hiding something often involves deception or dishonesty.
Yes, they are lying even though we are aware of their deception.
Lying game
Information on deception can be found in books such as The Art of Deception and Lying in the Laboratory: Deception in Human Research from a Psychological, Philosophical, and Theological Perspectives.
Deceiving, deception, lying, dishonesty, defrauding...
Loneliness, Relationships, Intimacy, and Sexuality, and Lying and Deception
not honest. Deception, not being able to be trusted. Lying, cheating, etc.
Plagiarism involves deception and theft.
It means getting money in some way that involves lying or deception. For an example, pretending to be injured and obtaining financial benefits when you are not deserving of them and they should not be given to you, because you do not really have the condition you are saying you have.
Emotional deception is using trickery and deception that effects or involves the other person's emotions. An example would be pretending to love someone just to get them to have sex with you.
It is possible that people may be aware when someone is lying, as there are often signs or cues that can indicate deception.
Three characteristics of a lying spirit are deception, manipulation, and conflict. Lying spirits often seek to deceive individuals by distorting the truth, manipulate situations to achieve their own agenda, and create discord or confusion among people.