Look for the right subject – ideally you want something where part of the shot is still, and the other part moves or changes. Think clouds across the sky; cars passing; sun sets; make up tutorials; attaching your camera to your bike and going for a ride, or just watch some plants.
Use a tripod or still surface. If you don’t have a tripod, find a way to keep your phone or camera still throughout the shot.
Have a go!
The quickest way to learn what works well is to try, watch, adjust, and try again.