1) Carefully follow the aspects between all the planets. Aspect (Angle difference between two astral bodies.) is the key factor for horoscope reading. There are almost 9 different aspects. Only 90, 180, 120, 0 degree are important. 45, 76 and 60 are less important. Other aspects are not accountable.

2) Give more attention to Moon in a horoscope. As we know that Moon is the controller of our mind. The planets, which are nearer to moon, are also important in horoscope. They give overview of the nature of the person.

3) Ascendant (1st house) is another point you need to consider. It helps to understand the personality of a person. How does the person react. Look at the complexion of the person and match it with ascendant of the horoscope. It should be match. Ex. - If Saturn is on the ascendant, it gives dark complexion if it is nearer to ascendant (less than 7°). If this does not match then it may possible that given time is not correct.

4) Don’t bias by person or circumstance. Only follow, what you have found in Horoscope. Exact birth time is required for a perfect prediction. If you are in dilemma, go for a horary chart.

5) Last and final thing. It is important to understand the nature of the various aspects. For a example,if there is 90° aspect between Mars and Moon, the aspect will not give good result. This makes the person restless. On the other hand if the aspect is conjunction (0°), it gives good effect, makes a person used to be hardworking.     - Learn Astrology