INVISIBILITY SPELL
For the sake of an argument, I am going to say that this is the only
real way for ivisibility: i.e. less likely to be notcied. Real invisibility
is practically impossible.
Hold a moonstone, bloodstone, diamond or opal (optional). Now, imagine
yourself. Imagine yourself slowly fadeing into the background, yourself
and the background becoming more blurred. Imagine, eventually that you
cannot be seen by none.