It was recently a friend’s birthday. Facebook, being the helpful social network it is, prompted me to “send her good thoughts”.

So I did.

“Hope you had a rad one!” I wrote. I hit Post, and my birthday greeting popped onto her wall. However, this post looked a little different. The word “rad” was in a bright purple… and when I clicked on it, little thumb-up emojis popped up and flew across the screen, leaving colourful trails in their wake. What was going on?

After couple of failed Google searches and some digging with the Developer Tool, it turned out that I had accidentally triggered one of Facebook’s “Text Delight” features. I had seen the “congrats” animation before, but it looks like there are three “secret” animations in total. Here they are, along with the list of keywords that activate them.

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