What is a typical Nine year old boys behavior?
A typical nine year old will be very active and inquisitive. The child will ask you many questions and will explore their new surroundings often.
The question is very hard to answer because the boys is plural (s), which looks like a group of nine year old boys attract a single nine year old. Although I doubt this is the real question. but we will use that as the premise for the answer. Answer: if you want to attract a friend you have to be a friend first.