yelling (6) (2) edit
scream (185) (55)
screaming (12) (2)
shouting (80) (11)
All describing the same action. The second number is the tag combined with open mouth.
Question 1) which should alias to which? edit Or are some of these distinct concepts from the other (scream seams to be associated with orgasm faces, though not orgasm itself)?
Question 2) should open mouth even be included if it's being used for something other than slack-jawed wonderment at something in frame (for instance, if it's obvious through dialogue that the character is speaking) or should scream (or whatever) implicate open mouth?
Question 3) edit should such a tag even be included since it's an auditory tag and not visual; hence all such depictions would simply be open mouth?
edit I should probably go to bed and stop getting things wrong.
Updated by Shinjidude