Aspergers and Mannerism ???

Hi All, 

       I do alot of casual work for a car park company in sporting venues around the london aera showing the customers where to park there cars. One of my colleagues I was working with told me whilst we had a free moment that he thought I had Asperger's. He only said this,only  when I admitted to having asperger syndrome he said it because of my mannerism.  My question is what was he talking about  "my mannerism" ?   I could'nt ask him about it again at the time because we were interrupted & it was forgetten.

Yours Peter0003