Richard Dean Anderson actually can play guitar. He was in a band back when he was in General Hospital and can be seen playing acoustic guitar on many YouTube videos.
Deborah performs a clever "getting into character mode" action --- using a multi-tool instead of an ordinary flat-tipped screwdriver to install the bug inside the wall-socket --- to better understand what makes the Swiss-Army-knife-toting MacGyver tick.
First of two appearances of the femme fatale Deborah played by the foxy Kristen Alfonso.