all of the ones i know so far are:
-“happy birthday” (balloons)
-“congratulations” (confetti)
-“happy new year” (fireworks)
-“happy chinese new year” (celebration , and also changes the text bubble color and font color)
I'm not aware of screen effects automatically sending words but the following has information on screen effects in iMessage: Use message effects with iMessage on your iPhone, iPad, and iPod touch - Apple Support
Happy Birthday does it. So does congra
Happy Birthday does it. So does congratulations.
And Happy New Year. May be others but those are the ones I've seen it happen with.
Which word are send by screen effects automatically in imessage
