Working with a partner, you’ll need some computer parts and the antistatic tools you learned about in this appendix. Practice touching and picking up the parts and passing them between you. As you do so, follow the rules to protect the parts against ESD. Have a third person watch as you work and point out any ways you might have exposed a part to ESD. As you work, be careful not to touch components on circuit boards or the gold "fingers" on the edge connector of an expansion card. When you are finished, store the parts in antistatic bags.