If you’ve ever seen a Facebook post about a company or product, and you’re not sure who saw it, there’s one easy way to find out. Just look at the date and time of the post. If it was published recently, chances are good that someone who saw it liked it and shared it with others. If the post was published a few weeks ago or even a year ago, chances are good that someone who saw it didn’t like it and shared it with others instead.