According to your birth you can see, Suppose you are libra lagna. So when you born 1st house was activated, 2nd year 2nd house activated and so on you can see. planets in that house will also give some result in some or the other way. Before 16th year No planet matures. So results may not felt as much. But results will be there. For eg. At 3rd year child go to play school. So he can learn to talk or communicate. 3rd house represent gemini sign. But 3rd lord will tell how will and how much child will be communicate.