Prepare the header strip:
Cut the strip to length if necessary. It will be easier to solder if you insert it into a breadboard - long pins down
Add the breakout board:
Place the breakout board over the pins so that the short pins poke through the breakout pads
Be sure to solder all 8 pins for reliable electrical contact.
(For tips on soldering, be sure to check out our Guide to Excellent Soldering).