1) The document analyzes conventions of fashion sponsorship advertisements, including having short 15-30 second ads, quick cuts between shots to showcase a variety of clothes, and upbeat soundtracks.
2) It discusses the ad's narrative of two girls getting ready for a night out and how this appeals to their target audience of 18-25 year old girls.
3) The ad sponsors Gossip Girl because the show and brand have similar target audiences that value fashionable self-expression.