After Effects Fundamentals - flickers and twitches in graph editor only

• 'flickers' and twitches'. terms that can be used to describe small, split-second movements that add a really nice spark, but should be done in the graph editor since you can quickly edit properties of the 'flicker' or 'twitch' instead of adjusting regularly
• the graph editor allows for more speed and greater flexibility in adjusting the randomness of a small flicker or twitch