The answers are "She reaches over and swings the broken door, swings it again, both women watch it" and "MRS PETERS shakes her head"
Explanation:
In a play or script, the stage directions refer to information that describes the scenery, the movement of characters, their actions, expressions and similar. These directions are often placed in commas or similar symbols and are not part of dialogues.
In the case of the excerpt from the play Trifles, the stage directions are "She reaches over and swings the broken door, swings it again, both women watch it" and "MRS PETERS shakes her head" because these sections do not belong to the dialogues but only describes the actions of a character; also, these are separated from the dialogues using parentheses.
