How to right click on iPhone?

Over the weekend my wife and I switched to iPhone as previous windows pc users, I got the black iPhone 5, and she got the white iPhone 4 special edition. I've been having the same issue on both phones so I'm not sure if both are hardware defects or the software is oversimplified/dumbed down for unsavy tech users and in my opinion so far relatively unusable. Wife doesn't care so much but I do.

To right click you double tap the stuff you want.

It doesn't work for everthing. Mostly just text in input fields and sometimes pictures.

You don't need to right click anything, thats for desktop computers, not for phones, just lightly tap anything you want to access.

I guess the closest thing per sé would be to press & hold on what you want. Phones of course don't have right click options.