I never really felt I was that abnormal. I didn't noitice I spoke more monotone than others, or that the average person isn't as clumsy as me, or that I didn't react properly to social interactions. Sure I knew most people considered me a little different, but I still thought I was within the normal ranges.
I think it is really hard to know the subtle differences that an NT will pick up on (even if they can't say exactly what it is, they can tell something is awkward).
But I think the recording thing is good. Whenever I was recorded at school (just voice) I was always embarassed how different my v.oice sounded from everyone's (and not in a good, unique kind of way).