2nd && 3rd house?!

2nd && 3rd house?

in gemini what does this mean?

Virtually in an astrological chart, houses are the 12 "pie pieces" that together form the basic framework of the horoscope. Sign divisions (where signs begin and end) are not traditionally represented in a conventional chart, though sometimes the sign divisions are indicated around the periphery of the chart wheel. The numbers and symbols that appear around the outside of the wheel indicate where houses begin and end with respect to the signs of the zodiac. Starting at the 9:00 position (which in most systems of house division corresponds with the eastern horizon) and moving counterclockwise, the houses are numbered 1 to 12.
The zodiac is traditionally thought of as beginning with Aries. The subsequent order of the signs is then counterclockwise around the ecliptic. Because the signs and the houses both contain 12 members, astrologers have often noted a special relationship between sequentially corresponding sign and houses. In other words, they have often noted certain parallels of meaning between Aries and the First house, Taurus and the Second house, Gemini and the Third house, etc. etc.
There is a great book on the subject of HOUSES by Ralph William Holden titled "The Elements Of House Division". For your Gemini question this is what the book says:
Sector - Gemini: Intelligent, lively, quick, versatile, inquisitive, communicative, restless, unstable, not dependable, erratic, over-smart;
Third House - Power of mind, dexterity, cleverness, education, short journey, near relatives, neighbors, writing, communications, recording, lecturing.

Note how sign traits indicate internal, psychological characteristics, while house traits tend to indicate external factors, as well as how personality traits manifest themselves in the world.