I perceive "hand on knees" gesture either as an intimate sensual caress, or unwanted groping and borderline sexual harassment. Is "hand on knee" just a friendl

I perceive "hand on knees" gesture either as an intimate sensual caress, or unwanted groping and borderline sexual harassment. Is "hand on knee" just a friendly way to position yourself when talking to someone in some cultures (so I know what to expect)?