How do I show that game I'm working on to others?

Hi Lucy, we used to use Dropbox and if you’ve already got an account with Dropbox you can use its public folder, as per discussed in this tutorial here:

If you haven’t yet made an account - due to recent price changes - you’ll have to look at the compilation method discussed in this thread: http://www.choiceofgames.com/forum/discussion/3279/can039t-post-my-demo#Item_27

If neither of those suit you, just sign up for anywhere you can host website files and upload your game files (everything inside the web folder) to your file space.