See below. Mild autism is characterized by persistent abnormalities in social interactions, restricted & highly focused interests, and restricted repetitive and stereotyped behaviors. There's often limited ability to have spontaneous social interactions and a failure to develop friendships. There may be delays in other developmental areas as well.
None really mild. A problem in reciprocal social interactions that harmfully impacts functioning @ work & home. Poor conversational skills; monitone speech. Trouble understanding that (not why) other people may not think what you think, feel how you feel, or want to do what you want, because of lack of theory of mind. Not knowing what to do to make others think better of you. May have anxiety/depression, adhd.