No one is impressed when you play the first few bars of the Rach 3, the third movement of the Moonlight Sonata or the Tchaik 1; do you honestly think that anyone out there is going to think you actually play those concertos because you go around playing the beginning over and over again? Most probably, you are making people feel a bit sorry for you.
It's the same as with classical guitarists; take any gathering of teen and pre-teen guitar players and you are guaranteed to have someone start playing the first couple of bars of Concierto de Aranjuez.
Stop wasting your time.
Practice what you are supposed to be practicing and maybe you will get to a point where you can actually play those things instead of pretending that you do.