fusable products usually make it pretty hard to hand applique- fusable is usually saved for machine applique-
to hand applique needle turn is the most common-
freezer paper is used for templates often (NOT WAX PAPER! which is a totally different product! wax paper is used to press leaves between---has wax on it! freezer paper is a white paper with a plastic side- the plastic is pressed to fabrics- it does not come off-leave any residue - is reusable- comes in a big blue box in the grocery store)
do a search for hand applique you will find tons of videos, tutorials
if you choose to use a fusable- find the lightest/softest one you can- they are hard to push a hand needle through-but it can be done