10 Questions You Were Too Afraid to Ask About Your iPhone

Open the Phone app, go to Contacts, and scroll all the way up to the top. That's where your phone number is!

HDR stands for "high dynamic range," and enabling it will give you brighter, sharper, and more well-lit images. Tap "HDR On" at the top of the screen in camera view. There are a few dos and don'ts, but for the most part, HDR will give you the best picture possible.

It essentially takes a series of images, each shot with a different exposure from darkest to lightest. HDR combines the best parts of the three overexposed, underexposed, and balanced shots to create a dramatic image with beautiful shadowing and highlights.

Open the Settings app, and then select General. Scroll down to Keyboard, and tap where it says Keyboards. Then Add New Keyboard, and select Emoji.

Now when you're sending an email or texting, tap the little world icon on the bottom left of your keyboard (left of the spacebar) to access emoji icons. Voilà! Now try your hand at these unexpected uses for emojis.

Turning off all notifications is a bit painful in iOS 9, Apple's most current operating system. Open the Settings app, and select Notifications. Scroll down, and you'll see a list of apps. Select each individual app, and slide off Allow Notifications. You'll need to repeat this for each app.

Open the Settings app, and select Wallpapers & Brightness. Then tap Choose a New Wallpaper to change your background. We've already rounded up a bunch of free iPhone-sized wallpapers for your convenience!

When the keyboard is open, double tap the shift key to turn it into the caps lock key. YOU'RE WELCOME.

From the home screen, press and hold down any app icon. To create a folder, drag that app icon over another app icon. This will create a folder that can be renamed. It's an easy way to loop multiple apps into one category. Some of our readers have awesome folders.

In a text message thread, swipe your finger to the left — anywhere on the screen — to see timestamps for each text on the right.

Press and hold the home button to get Siri. You can also press down on the middle part of the Apple EarPods remote if you're in a situation that requires hands-free action, like driving. There are lots of useful things you can ask her.