On Sarcasm and Seminary

My sis: I feel like Hashem is sending me signs.
Me: Hashem is always sending you signs.
My sis: I know, I know. Hashem is always talking, you just need to learn how to listen. ... See, I don't need to go to seminary, I already sound like a sem girl.
Me: Yeah, but in seminary they teach you to say it without the sarcasm.