Time and time again, audiences return to their favourite actors because they know what they're going to get. With Al Pacino, you're probably in store for a somewhat hammy, larger than life performance; with Samuel L. Jackson, chances are that - at one point - he'll deliver a loud and sweary rant, because that's why you hire Samuel L. Jackson; Meryl Streep - she'll do a strange, foreign accent without breaking a sweat, no doubt. It's these trademark characteristics that make certain actors memorable, of course - and if you don't have a "thing," you sure as hell better get one. One of the more curious aspects of revisiting actors on the screen, however, lies in the ability to notice certain tics that carry through their entire filmographies. That's to say, small, seemingly trivial mannerisms or repeated techniques that can be witnessed over and over again in separate films - some of which are hilarious viewed in retrospect. Were these actors aware of their own weird tics until somebody brought them to light, or were they all purely coincidental? Who knows? Here, then, are 10 actors who always seem to deploy the same notable tics in every movie, starting with...