Someone exhibiting these three behaviors likely lacks genuine skill; they are merely pretending.
There's always a certain person around us who seems incredibly capable, but in reality, they're actually quite ordinary. Especially those who exhibit the following three behaviors are exceptionally skilled at deception.
One: Talking without doing.
This type of person only talks a big game, but when it comes to actually taking action, they are clumsy and awkward, because they're primarily skilled in words and lack genuine 'ability'.
Two: Short-tempered.
For short-tempered people, their bad temper is actually a form of self-protection. They believe that if they appear aggressive, people won't dare to harm them, so short-tempered people give others a feeling of not wanting to get close, which is because they don't actually possess genuine 'skill'.
Three: Double-faced personality.
Here, the 'double-faced personality' refers to having different attitudes towards different people. For example, they are always respectful and submissive to their superiors, but critical and commanding towards their subordinates. Similarly, they often look down upon service personnel.
—The end—