Jake you can type a letter down
Example

Dog

Press it and hold ur finger on it.
Wait until you see a blue highlight
Then you take ur finger off
You have four options
Cut, copy, paste, and select all
Tap copy,
Then tap the white arrow on the left of your type
Go to the one that looks like a clipboard, it keeps all of your copied stuff for a decent time, then gets rid of it
If you have a keyboard you cannot do any of this. It will only work on a tablet or a phone. Nothing else