Mercury rules Gemini and Virgo. Mercury is the most prominent planet of speech, communication, and intellect. You must have seen people with excellent oral, written, mental, and logical skills, witty, good with speaking abilities and calculative skills, it is because of Mercury. Such person creates humor in the environment using their verbal and mental skills. People who are not good in communication or having problems gathering thoughts are due to weak or afflicted Mercury.
The people, who have well placed mercury in their horoscope, are shorter in height, look youthful and have bright smile on their face. This is equally dangerous planet – as this gives repetition in life. So if this planet is present in someone’s life partner house – one can expect more than one marriage in a lifetime. If this planet comes in a conjunction of specific other planets, then it indicates impotency of a man. Afflicted mercury can make a person fraudulent – as that requires the intelligence.