Because I watch this show so much (I've finished the two season so now I have reverted to just watching the same episodes over and over and over.) I have found that I do this with my hands a lot.
Benedict Cumberbatch as Sherlock Holmes and Martin Freeman as John Watson
30 Days of Sherlock Challenge Day 19 Character that is most like you. I'm a big loner (only have one really close friend, though I have a few) I have Aspergers, and I've studied and mastered the science of deduction.