A proper physical response to this music might be<u> tapping your foot lightly</u>.
Explanation:
A physical response to music is the one that makes us move a part of our body at the rhythm of the music or our whole body, like when we swing from one side to the other as we listen.
Thinking about your sister is an intellectual response to music where the music made you remember a memory or think about something.
Feeling happy is an emotional response to music because the music caused a certain feeling in you, in this case, happiness.
