Only if you make them! If it's your first time at a performance, then have a seat and get comfortable. Be sure to read the program notes to get an idea what the music is about, and the people making the music.
During the performance, feel free to not only listen but look at the different musicians performing. You can usually see what is important to listen to in the music by observing where the conductor is focusing in the orchestra.
If you liked a piece of music, that's great! If you didn't like a piece of music, that's also great! But importantly, be sure to listen to understand why you didn't like something. Was it too loud, too difficult to follow, too many notes? Not enough notes? These observations will help you in understanding your own likes and dislikes (it's a bit like learning if there is too much salt on your French Fries, you learn through experience.)
