(...for me...)

Practice = taking sections of songs and working them through, or experimenting and noodling around.

Rehearsal = playing every song in its entirety, from beginning to end (no stopping and starting over if you make a mistake or hit a bad note or accidentally mute it.) (Doing this in front of a mirror is optional. Just remember to keep your mouth from dropping open, or any manner or voluntary facial contortions and you'll look fine on stage.)