Former Google VP lists the number 1 "rare" skill she looked for at job interviews

Self-awareness is also a "rare trait". She said according to research, even though 95 percent people think they are in fact self-aware, it is only the 10 to 15 percent who actually are.

Johnson said she always watches out for two words — I and we.

"Too much "I" is a red flag that they may not be humble or collaborative; too much "we" may obscure what role they played in the situation. There needs to a balance," she wrote in her column.

Johnson said she usually learns something revealing when she asks the candidates about their specific role. According to her, a positive answer would be "It was my idea, but the credit goes to the whole team," she wrote in the column.

She also asks the candidates to describe their colleagues. If they only have good things to say, she tries to look for what constructive feedback they have received.

And then she will ask them what they have done to improve to check their orientation towards self-improvement and learning and see whether they took that feedback to heart.

Johnson in her column listed some signs to know if one is self-aware:

You constantly disagree with the feedback you get. This doesn't mean the feedback has to be correct, but it does mean that how someone else perceives you is different from how you perceive yourself

You often feel annoyed and frustrated because you do not agree with your team's decisions and direction

At the end of a workday you feel drained and you cannot pinpoint why

You cannot describe what type of work you do or do not enjoy doing

Johnson said becoming more self-aware is about understanding why one works they way they do and what can they do to contribute to their team. She listed a few points to build self-awareness:

One should know what gives them energy, what is important to them and what weakens it, she said, adding that these insights will enable one to express their values and understand when they are at odds with one another and with someone else's values.

Johnson said said one should spend a few weeks writing down moments when they feel like they are reaching new heights or lows at their job and they will begin to see patterns. "If you have trouble trusting your own instincts, ask someone whose judgment you respect: “When have you seen me do my best and worst work?”," she wrote in her column.

Johnson said one should be able to speak confidently about their weaknesses and strengths.

In order to have a more tactical sense of self-awareness, one should ask themselves two questions — What they can do really well and what are their capabilities.