Cantagalo will know better than me, but I suspect the average Brazilian wants them to make sure they win, not to play pretty football. As it stands, of course, they're not going to do either
There's a widespread cynicism surrounding just about everything concerning the national team. Brazilians are fed up with the CBF, Teixeira, Marin, Dunga, Menezes, over-hyped players. Those who follow football closely are far more concerned about the fortunes of their club teams. Of course this will change over the next 18 months as the media go into overdrive and the casual supporter 'gets behind the team'.
So I think there is a real hunger to see a Brazilian team win in style. Dunga, until the 2010 World Cup, was a very successful manager in terms of results but was widely despised, though he didn't help himself with his dour and irascible personality.
So there was some real hope that Menezes would change this and introduce a more attractive style of play. The early signs were promising but in his only competitive tournament the performances were as dire as anything under Dunga.
And none of the domestic alternatives - Tite, Muricy, Felipão, even Abel Braga from Fluminense - are exactly renowned for their expansive football. It's somewhat telling that if Brazil want to revive the style of play for which they're renowned (but hasn't actually existed for a long, long time) they'll probably have to employ a foreign manager to do it.