It means he likes you.
If by "show up" you mean identification in a urinalysis, yes it'll show up.
If you mean Codeine, then yes it will show up as an opiate.
She doesn't. Apparently she is prepared to keep it up indefinitely.
I show up and get on with it.
Dont show up to work.
Basically, it means "get ready." If you tell someone to saddle up, it means get ready or prepared.
It coul mean a date didn't show.
Yes, but be prepared to back up that statement with concrete examples.
If you mean: He just turned up at the show? It means that someone or something happened to be there.
Methadone you mean? Yes it does show up in a drug test.
I think it means if your boy/girlfriend doesn't show up show up on your date, then you have been stood up to.