The maid (η παιδισκη). Feminine form of παιδισκος, diminutive of παις. See Matthew 26:69. When "the maid the portress" (apposition).

Art thou also? (μη κα συ ει;). Expecting the negative answer, though she really believed he was.

This man's (του ανθρωπου τουτου). Contemptuous use of ουτος with a gesture toward Jesus. She made it easy for Peter to say no.