I tend to walk with my hands clasped in front of me (palm of right hand on back of left hand). I hadn't noticed I did this or that it was odd until a friend pointed it out a couple years ago; at the time I thought it was due to the fact that my hands were injured and there were only a few positions in which they were comfortable, but I've since discovered that I do it a lot of the time even when my hands are perfectly fine. (I think other times I put my hands in my pockets.)
Other than that I'm not aware of anything odd about how I walk.
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Now convinced that I'm a bit autistic, but still unsure if I'd qualify for a diagnosis, since it causes me few problems. Apparently people who are familiar with the autism spectrum can readily spot that I'm a bit autistic, though.