I've seen all the pretty selfies when people take a photo of themselves from above, I tried,but always ended up thinking my arms were to short when holding up my arm and trying to hit the photo button. Even lost my phone a couple of times in the attempts, but one day by accident I touched the screen and found that I took a photo which actually looked half decent. So first lesson is: You can touch anywhere on the screen to take the photo. You don't need really long arms. Here's a few shots of me that I'm quite happy with.
Do not under any circumstance take a selfie from below, that will only make you loose any confidence and show off all your double chins even if you don't have one.
A photo like this will not only ruin your day, but also your reputation. Ah now I ruined mine.
I do prefer to look like this instead.
Hope this lesson was helpful to someone.
Until next time.