Choose a subject to photograph - it can be a person/place/thing...it just can't move. In your first image make sure you can see the entire subject, then with each new shot divide the distance between you in half...do this until you are touching it (or as close as you can get). Feel free to change the composition with each shot...this isn't just about cropping, but what things look like as you move from a view of the whole to its abstraction. Does the subject retain its qualities as you move closer? Do they change? How? As you do this a few times does a pattern emerge?
If you've just joined us, February is a 28 day creativity challenge with a new "prompt" each day to get you thinking in new ways. The goal is to just have fun, don't try to control too much, feel free to use a cell phone or any camera that's easy for you. Don't worry about the end results. With each prompt you can take it literally or not, you can wing it, google it, ask for people's opinions...whatever you want to do is perfect. Bottom line - it's supposed to be fun, there are no right or wrongs.