If you have ever found yourself alone in the airport overnight, stuck in the terminal for a long layover, or miraculously breezing through the security line faster than expected (yes, it happens), you might be at a loss as to what to do with all that free time before boarding.

After all, there’s only so much pre-flight shopping, eating, and drinking a person can do.

But there are actually more creative, fun, and free things you can do to make use of your time before you’re expected at your gate. Helpful commenters on an AskReddit thread came up with a few good ideas for passing the time when you’re stuck at the airport.