Whenever I teach someone to drive a manual, I always tell them the most important thing to remember is...
Gas before clutch.
Never let your foot out on the clutch unless you are giving the engine some gas, otherwise you will stall and freak out because the car just shook like a crazed animal before dying.
I also have them rev the engine pretty high to get them used to the engine noise because I have noticed a lot of people tend to freak out when the engine spools up but the car isn't moving.
So to sum up, gas before clutch and don't go crazy when the engine gets loud.