I am very new to improv and everybody keeps mentioning licks and I have no idea what they are! Any other improv/jazz tips would be very helpful as well.
Licks are produced by Cats, Hep and Ordinary ones..........................
Have a go playing a 5 note sequence using certain notes over and over. See which ones sound really cool, really interesting, really dynamic and so on then produce them at an appropriate moment and stop playing for a short while. Repeating a lick can be really effective, or ending on a different/adjacent note etc.
And if you repeat it enough times you can call it a riff, for extra cool points .
(Btw, I don't like the way th Mr Cool smilie is smoking. Seems especially inappropriate in a sax-playing forum.)