How do I enable selective sync for my Dropbox account?

If you have a Dropbox account, you may want to enable selective sync in order to save space on your computer or device. Selective sync allows you to choose which folders and files you want to sync to your device, so you can free up space while still having access to all of your Dropbox files. This is especially useful if you have a lot of files stored in Dropbox and don't want to take up too much space on your device.