The Opaque Cup Trick

finally i'm back on track and this time i'm not going to let my controlling family push me to binge again... and saying i'm not hungry isn't going to be it this time... I have something else;
the opaque cup trick

i've considered trying it before but eventually i would've accepted the fact that i'd have to eat that night...
but i can't gain any more weight and throwing up isn't good enough anymore...
the opaque cup trick is when you pretend to be drinking from a cup (whos contents can't be seen from the outside, of course)
and spitting your food into that cup so everybody thinks you've eaten, but it's all an illusion

can you tell?