Making .gif files is quite easy.
Step One: Choose a .gif creation application. There are many free ones for any OS, plus online sites. Note: Unless you have an Uber WiFi connection, I'd stay away from the online method.
Step Two: In your app, choose at least 6-8 images from your device or downloaded from the web. You must select them in the order that you want your .gif to phase the motion into. Also, the more input files, the smoother the animation.
Step Three: Click "make .gif". Most apps will also give you the option to save as an .mp4 video file too.
That's it!
Put a fork in yourself, you're done.
Seriously, you've just made your first animated .gif file!
Here's my first one:
In Lak'ech, JaiChai
(JaiChai 24 SEP 2021. Simultaneous multi-site submissions posted. All rights reserved.)