I am a junior in high school and play lead in our jazz band. Im basically in way over my head. But thats what makes it fun Recently my director has thrown out the idea of me shaking a couple of notes in some of the music. However i cannot shake, especially after school when we practice and im dead. Ive heard people do that on recordings, and seen and heard pros do it in person. I have been told that it is a lip slur more or less, but i think that is impossible on a high F or A. But on a mid-range not like a 2nd line G ive had it work if i literally shake my trumpet, like i combonation of major vibrato and [gently and controlled] the only word for it is cramming the trumpet into my face and out again. That sounds horrible but its the only way to describe. I can talk to my teacher, but since this sight has millions of awesome pros i thoughtd id see what the world thinks about shaking. How do YOU shake. How can I shake. Am i no where close to the right answer.