I recommend you to use Auto Clicker by Shocker which I gonna be using in this tutorial. So just navigate to the download page and grab the software.
Next, open up the Facebook website and log in. Now, open up a new tab and navigate to m.facebook.com which is the Facebook platform for mobile phone. The site layout will look lke yhe image below.
Next, navigate to your victim's profile page and type some message in the comment box. In this tutorial, I'll be targeting the test account that I created earlier.
Now open up the Auto Clicker software that we had downloaded earlier. The software interface should look like the image below.
Change the Number of clicks to your liking.
Now back to your victim's page. Press the F2 button to run the software and leave your moue cursor on the "Post" button.
Leave the software to run for a few minutes and you should have your result.
NOTE: Do not change any other settings...Just leave it as default.