My younger son is diagnosed with it. I am not certain he actually has it. He does exhibit several of the characteristics. Those characteristics blend with "normal" quirks we all have though. If he does indeed have it, it is mild. Something I have had many arguments with my ex in that I believe he is more normal and more capable than she believes. I have proven many times that he can get through certain issues.
One of the problems with the diagnosis crowd today is that the autism spectrum or whatever diagnosis becomes a crutch and we deal with the label rather than the person. And rather than moving forward in life we use the label as a crutch which in fact holds back development.
As for asperger's- it is in the autism spectrum as it has many of the defined characteristics of plain autism. A person with it will tend to have many social difficulties. They will feel awkward in social settings. They simply will not get the normal cues to how a person is projecting emotion unless the person will actually state how they are feeling. Sort of a black and white world. Even if a person is projecting enough emotion and even stating how they are feeling, a person with asperger's is not likely to understand why unless the person who is feeling such emotion states why. And of course that is also a variable with how severe the asperger's is.
People with asperger's will have little ability to lie as it is a construct variable. They will tend to gravitate and often obsess with certain hobbies or trades. There will be a need to be perfect with whatever it is they do. And they will be able to have amazing attention to detail with it and have amazing abilities to stay on task. Typically it would be with hobbies and trades that are absolutes. Although on occasion, can include certain artistic elements. Although they will not have a wide of scope. Expect a person with asperger's to be very good at math, sciences, trades such as electronics, construction, many related skills that have to do with fixing things.
communication skills will be difficult and they will have difficulities with relationships and marriage. People who have been diagnosed as adults will often say they had failed marriages and never understood why until they were diagnosed with it.
Because of the blending of normal quirks and social issues, I believe too many can easily excuse the need to improve social issues once diagnosed. Just because someone has a diagnosis or even if they don't, they can still improve their deficient areas. They may never be social bugs, but can get to a point where their awkwardness does not hinder them to the point where they cannot survive in the community at all. And can go on to form good solid friendships and relationships. They will never be the life of the party so to speak, but can be one who does at least go to the party.