After publishing the listing, remember to periodically visit the site to check if someone has responded to your listing or has published a listing featuring your lost item.
Share the listing on your social media and ask friends to help spread the word, increasing the number of people who see it.
Beware of scammers! For more information, read How to Protect Yourself from Scammers When You Have Lost Something or When You Find Something, How to Avoid Giving the Item to Scammers.