Front and Back Loops

We have discussed previously front and back loops. But this is a confusing topic, so it can't hurt to look at it again.

After you have made a few rows, look at your practice piece. 

On top, you will see what looks like "
( )".
These are your loops..
(
Mine have a tendency to not be directly on top of my swatch but laying towards me)

The loop closest to you is the front loop. "
("

The loop farthest from you is the back loop. "
)"

What do these loops do?
They make ridges in your piece.  Scary.
If you do not want ridges,
then use both loops to crochet in.