I am 24 and i have a 6 year old brother that i see very rarely because we live in different states. While visiting for the past week i began to notice strange behavior that reminds me and one of my other relatives of a cousin i have with aspergers. he was never socialized around other children till he was almost five and it caused some issues with making friends and aggressive behavior. however it has been almost two years later and he still seems to have a very difficult time interacting with others, he has issues with aggression with other children at school and just appears to be awkward and out of place. he seems to me to be very introverted, he plays with his toys and often hums to himself and stays in his own world. he has interests in certain topics and on the rare occasions that he actually does carry on conversation with me he only seems interested in asking me random questions. he is having problems with reading in school, his teachers describe it as though he can read the words, but is unable to communicate them and understand them completely. i have noticed his coordination is not fantastic, although he is 6 so im not really sure how good that is supposed to be, but he tends to sway alot, like hes dancing almost. the aggression issue is still there as well, especially with animals and my 12 year old sister and my 2 year old daughter. my father has a 12 week old german shepard puppy that he constantly bothers and provokes, however when reprimanded for his behavior he justifies it by asking questions and saying he was doing the right thing and makes excuses for hurting the dog. it is as if he doesn't understand at all that what he is doing is wrong, so he will be reprimanded, and immeadiately go right back to what he was doing. he has violent outbursts towards my 12 year old sister. he is an extremely defiant and manipulative child from the moment he wakes up to the moment he goes to bed. i know that sounds terrible to say about a relative but that is literally what he is. he is a master manipultor. it is the odd behaviors that concern me though. i have read some symptoms of aspergers, i would just really like to have an outside opinion before i bring it up to my father who seems to be in denial of any issues.