He HUGS. Like mad. It's amazing. King of bromance. You forgot Ben and Tom Hardy, Ben and James McAvoy, Ben and Jonny Lee Miller. You name a fellow male British actor that he comes within five feet of, and he's got his arms outstretched.

(Funny that we don't seem to see him hugging females that much--must be a public school thing.)

First year: What's that guy's problem?
Third year: Oh, that's just Ben Cumberbatch. He likes to hug people. He's harmless.
First year: Wait, his name is CUMBERBATCH?