You are excused. I never even realized they didn't have them, come to think of it I don't think I've ever seen any that do.Please excuse my rather off topic and nosey comments but, how on earth do you open the drawers and cupboards without handles??
As to how I open them, it's honestly quite simple.
For the "cupboards"
Step one:
grab the corner.
Step two:
Pull open.
For the Drawers
Step one:
Grab the top of the drawer
Step two:
Pull open