DETROIT -

Do you pay attention to the in-flight safety demo when you're flying? If not, this flight attendant might make you want to.

In this YouTube video, a female flight attendant is giving a hilarious in-flight safety lecture on a Southwest Airlines flight to Salt Lake City. Another colleague demonstrated how a flotation device works, or "your very own teenie-weenie yellow Southwest bikini," as she put it.

She ends the routine by saying "Sit back and relax, or sit up and be tense," and is greeted with a round of applause. Watch the video below or right here.