Even if you're not actively practicing every day, it's good to be in the mindset of thinking about how the underlying programming works whenever you engage with software. If you see an interesting feature in a piece of software you're using, try to think about how it was done and how you would go about doing something similar. Or, if something doesn't seem to be working very well, think about why it doesn't work and how you might try to fix it.
If you're regularly engaging with open-source software like Steemit, the great thing is that you can then go search the actual code and see how close your conclusions are.