One technique used in drama, more by actresses than actors (is it ok to say actress rather than female actor?) is the the to and fro eye dart. This is used when the actor is "searching" the eyes of the other character who may be saying something like, "Of course I don't love you anymore."
They will focus on a face shot of the searching character who is staring into the eyes of the other character. Many actors have mastered the technique of making their eyes shift quickly back and forth, but only just a little bit each way off of center. They can do it rapidly, like maybe 5 times or so in a second. It is supposed to convey earnest bewilderment, I think.
Remember that in your next audition.
Dialog is different and I need to make mental notes of all the typical phrases. Of course, just like in politics and news commentary, the phrase "at the end of the day" has become common. It replaced the over use of the phrase, "the bottom line is...".
Fictional characters will likely never stop "playing a hunch". I'm grateful that "and your point is?" hasn't run as far as it could have. "having a lot on my plate" found its way into many scripts, sometimes on every page, but seems to have faded. Now I only hear that from my brother.
I suppose "you're (he/she/it's) going down" is often about the easiest way to say it so that cliche is not quite as pure hollywood.
It is clear that some actors and/or directors come from whichever school thinks reciting lines with a full mouth of food is great for adding a realistic touch. They clearly have been taught the technique and they all do the eat and talk delivery identically. To avoid actually grossing everyone out while doing this is an acquired skill, considering you have to utter your lines audibly and articulately.
I think it is a stupid device. In real life, my friends rarely attempt that, and if they do, I generally let them know I have time to wait until they swallow before hearing what they have to say. Michael Landon, RIP, was a great proponent of the talk-with-food-in-mouth acting school. That is quite clear. He was also a fan of the fake uncontrollable laughter scene. It was a good time killer if the script was a little short, I guess.
I go great lengths of time without catching current TV, and even on hulu I still avoid any show with canned laughter. It is my little protest. Some people won't buy foreign products or shop Walmart. I boycott laff track driven entertainment.
I'm going to keep an eye out for other techniques so we can employ every cliche and seemingly pointless acting and scripting device when we create our own show.
While I am at it, I hope to discover why Alec Baldwin thinks he's funny. He simply is not. I've yet to find any humor in his humor.