Before even considering taking a selfie, one must look their best. A series of steps must be executed before ever whipping out that camera.
Disclaimer: The majority of this tutorial is intended to be humorous.
Step 1: Hair
Step 2: Makeup
Step 3: Clothes
Step 4: Setting
Step 5: Angles
Step 6: Smile
Step 7: Take the Selfies
A smartphone will work, but the pictures won't be as good of quality.
Don't forget to experiment with those angles and SMILE!