you missed an s in the command.
@YOU stands screen
also if you want them simultanoustly on scene use & instead of @
you might not see it in portal but in phone if ouy write it lik that YOU will pop up on scene milisecond later after DAD
But if you write it like this:
&DAD stands…
@YOU stands…
thay will be both there in same time because all with & hapen simultanously wit @ UNDER it.