The key trick is to create a habit. What I recommend doing is picking a specific time and place for reading every day. It doesn't have to be much. Even if you just read a few pages, that helps start forming the habit. As long as you're setting a realistic goal and you actually accomplish it each day, then you'll feel good about it. This will make you want to keep doing it. Eventually it just becomes second nature where you end up going to your reading spot and doing some reading.
I also recommend starting with books where you find the style of writing engaging. For me it makes a huge difference. Some books I can read really fast, and others I struggle to finish. If you start a book that you're not enjoying, don't feel bad about abandoning it. Having positive reinforcement is important into creating a habit successfully. If you start feeling like it's a chore, then you're more likely to abandon it.