How to add text to the game

Game link:
How would I add text at the beginning to show message like “Use arrow keys to move” and then it would get destroyed when you start to move again?

Theres this “alert” in the GUI section.
“alert” will display a message at your screen when triggered

Thanks for the response! How do I make it to trigger? And when does it turn off after triggered?

Or use a label and set the alpha to 0 when you start moving

Once > Alert (Message) Ok > Close or Keep doing messages.

Could some1 please make an tutorial because I cant get it to work.

“Once” into “Alert” or whatever you want to trigger it with