music in video is from demo 2008 by (Latch\xe9 Swing) / CC BY-NC-SA 2.0
Binding off in pattern is a technique often used when finishing a rib pattern. By binding off knits as knits and purls as purls you can keep your project from flaring as well as making the bind off a little less obvious.
Note: These instructions are for binding off in a 1 x 1 rib pattern, but the principle is the same for all binding off in pattern.
Step 1: Knit your first stitch as normal.
Step 2: Purl your second stitch as normal.
Step 3: Slip the first stitch over the second stitch.
Step 4: Knit one.
Step 5: Slip stitch over the new stitch.
Step 6: Purl one.
Step 7: Slip stitch over the new stitch.
Repeat steps 4-7 until you have one stitch on your needle.
When you have one stitch left, break (or cut) your yarn and pull tight.
Example of Binding Off In Pattern with 1x1 Ribbing