1. Key Signature:
In the Key signature there is 1 sharp. All F's are F#'s. Note: in a key signature all of the changed notes are affected it does not matter where the note lies on the staff. The F sharp could be below the staff or way above the staff all F's are F#'s.
2. Exception to the Rule
Usually you play the thumb or p finger on the bass string, but in this piece use the thumb on the G string.