Dr. Sharma reveals a classic, subconscious physical habit that perfectly describes the internal anxiety of Ketu in the 2nd house.
Ketu rules the nails. When afflicted in the 2nd house (wealth/speech), it creates deep, hidden financial anxiety. The physical manifestation of this anxiety is chronic nail-biting ("nakhoon chabata hoga").
Psychologically, this person is deeply insecure about their status. To compensate for their inner emptiness, they develop a habit of extreme showing off. Even if their actual income is very low, they will project an image of massive wealth and success to the world ("kam kamata zyada dikhata hoga").