The way the secret was told to me was to press on the trunk on its edge with your fingers, directly under the wing, not the middle of the trunk. Then again, it could be you meant that same thing.
Same for the engine glass cover, but where that gets a little tricky because you have to be careful not to lean against and scratch your rear fender when reaching over and closing it by pressing the edge of the glass with your palms. For the frunk, I was told to slowly lower it till till almost closed, say with a 5 or 6 inch gap at the edge then remove your hand and let it drop and latch itself. No press.