Lyric discussion by missme 

Cover art for Mostly Waving lyrics by Emily Haines & the Soft Skeleton

"Don't elaborate like that You frighten off the frat boys, Use your baby talk."

--isn't that basically telling herself not to act depressed, to dwell on it? To try and move on and pretend everything's okay after the death of her father? That's what I think the song mainly seems to be about.