Draw frames in mind. Keep an eye on potential pictures. Visualise the scene against changing backgrounds.
Know the response of your camera. There is one magical moment where you get the best result. Do not miss that. Be aware of it.
Take the date stamp off Please!
Take as many shots as possible. Know your window for that.
Buy the best you can afford. Avoid B&W and Sepia without processing knowledge.
Those days are gone when pics of trains standing on the platform mattered.
Try interesting background…a wall, flowers, trees, passes, mountains etc.
Anticipate the events…know when that diesel notches up.
Build a story. Do not take random pics.
Learn at least a few imaging software. It will help you crop the pictures to make a better composition.
The same picture can generate different feelings…so cropping can help you show what you see that is not apparent to others.