How do I turn off this spam every time I click on someone

[bonan]

I've never noticed this before but tonight, somehow this got turned on.
Anyone know how to turn it off?

[feniin]

Alt+O > General > Target Click Shows Help

[bonan]

omg thank you!

[aaezil]

Why did you click on someone that many times

[bonan]

i was just doing it to show of the spam in the screenshot