There will be initially the urge to act in opposition the way many on the left did with Bush. Namely, throw a tantrum and oppose every action.
This is wrongheaded for several reasons.
First, the closeness of the 2000 election, the fact that Bush lost the popular vote, and the seemingly endless recounts gave rise to the feeling on the left that Bush was "illegitimate." There is no such situation here. While we can argue if this was a landslide and what was the size of any "mandate", Obama won convincingly. His legitimacy to be president is beyond question.
Second, the press is obviously behind Obama and will play up the smallest of items into huge tempests. As much as we complain about the media, whining does not help. We need to have a better PR game, all the while trying to develop our own Internet based alternative media.
Third, I am an adult. You are all adults. Lets act like adults.
So what should we do?
Be responsible, intelligent, and most of all adult in our opposition. If President Obama does something I think wrongheaded, I will oppose and look for alternatives. If he supports something I support, I will support him. If he governs as the far left wing community organizer and legislator he was, oppose him and suggest alternatives. If he governs as the centrist Democrat he presented himself as during the general election, great. I will support those policies I support and try try and push him to the center right.
And if he governs as a vacuous but cool, post-modernist poster child having his way with a fawning press, well, that is what I am expecting right now. Then we shout that the emperor has no clothes.
In the old days, that would all sound silly. But thanks to the Internet, we can organize easier. “YES WE CAN!” But let's be adult and responsible about it.