Hi,
I have Gemini on the M.C and could relate to much in the site that Tim mentioned.
You should also look at the sign and house in which Gemini's ruler, Mercury, is positioned, as this will provide information as to how best make use of its functional communicative qualities. You should not forget that Mercury also rules Virgo, so it literally has a double function.
My
Mercury is in the 9th house in Taurus.
Although I started work in a bank, that soon became dull and I applied for and got a job in the statistics (Virgo) dept. of a company that dealt with foreign trade. When I met and married my foreign husband, I moved to live abroad.
Jobs there were with an international publishing (9th house) company, first on the statistical side and then on the Gemini communication side as a correspondent with world-wide foreign subscribers.
Moved on to work for an international monetary exchange burea at the country's capitol station. Personal contact with hundreds of clients a day who exchanged one currency (Taurus influence) for another.
Left there after 10 years to study astrology (9th house), later specialising (9th house) in its medical health (9th house) side.
Returned to work, employed at a 5* international hotel in the city, where I was literally 'a bull in a china shop' selling expensive merchandise to customers from all over the globe.
When I decided to give up working altogether, I began teaching astrology at home and in community centres. This went on to giving talks (and NOT Jupiter lectures
) to various groups in my immediate vacinity.
Had three written articles published in a well-respected astro. magazine.
I think it would be true to say that my Mercury of Gemini M.C has functioned well for me.
What Mercury never does is try to convince others of its 'go with the wind' theories, unless there is a Jupiter/Sagittarius connection in the chart. Neither does it possess an iota of manipulation, unless there is an influential connection with Pluto/Scorpio.
My Mercury in Taurus with Virgo influence works through the proven fact behind a theory, and not vice-versa. Mercury will work differently through the other elements.