Rename this new action “Look” and click the F to make sure it is saved when not in use. Now delete all but the first keyframe. Move the Cursor in the timeline to frame 20.
As you can already see, 3d animation is a technically complex task. A worm with five bones is about as simple as it gets. Still, with some creativity there’s a lot we can do even with a simple character. As an example, we’ll make it pause, lift up its “head,” and look to either side before returning to its crawl.
Rotate the third bone from the front of the worm on the X axis so it’s pointing straight up. Rotate the first bone, the “head,” downward so it’s looking forward. Insert a keyframe at frame 20.