After Effects — Wiggly Liquid Line

I came across a great tutorial by Noble Kreative on animating a line that almost looks like some sort of liquid. Adding fluidity to an animation gives life to the objects, like adding a charming characteristic. Please visit his tutorial for more comprehensive explanations. This entry is meant for my personal notes about the techniques and effects he used for my better understanding of After Effects.

These are animations that I created inspired by the tutorials. Left: Fluid liquid line Ver.1, right: Fluid liquid line Ver.3