I suggest the following method:
Firstly you should casually approach the Drawer as if you were a skeleton approaching a child.
A bit like this:
Next corner them like you’re cornering a skittish black cat thats holding your favorite orange hostage.
Approach slowly…
Then GRAB QUICK QUICK ITS GETTING AWAY DIVE DIVE DIVE FOR IT DIVE FOR IT NOW!!!!
Once you have them successfully in your grasp, whisper in a very soft and kind tone “Heh heh got you now!!”
Then proceed to ask for a drawing.
If they say no let them go and sit in a corner sadly.
If they say yes tell them what you want after a quick celebratory party.
It works 50% of the time!