cause they want 2 be that fake people , so we must take care usually , and don't truth n any one easily. good luck.

Sometimes people lie because they've been hurt deep down and retreated back to their shells, just like snails when sensed danger they will hide themselves instinctively.

all animals have 2 responses to adverse situations: Fight or Flight lying is simply the verbal form of the "flight" mechanism, I don't think anyone ever "learn" to lie... rather, most people have to learn NOT to lie!

Liar people are not mature beings and they don't have good feelings. Maybe the only way they know for living is deceiving about others and play with their hearts. Be careful there are many round us.