Times Square is an attraction because of advertisements, so much so there is dedicated terrace seating for people to sit and behold the spectacle.
We saw a great advertisement from Forever 21, which successfully cut through the noise. An interactive digital marketing campaign that uses its environment & medium to great effect...
Have the advertisement grab peoples attention by showing them what everyone wants to see - themselves on the big screen:
As the crowd grows more people stop for their chance to appear on a major screen in Times Square. Take a snap shot of customers waving and display it, keeping the crowd engaged - great experiential marketing.
The customers experience is then interrupted with an advert:
Whilst I often cite the end of 'interruption marketing', you'll notice the advert is for the Forever 21 store below. A highly successful marketing campaign, which combines engagement and interruption marketing to great effect in one of the most attention competitive environments in the world.