Answer:
The best attitude to take is a proactive attitude, in order to be able to pass some important legislation during this period.
Step-by-step explanation:
The reason is that most presidents enjoy above-average approval during the first days of their mandate, and this approval not only translates in a more favorable opinion of citizens, but also in a more positive environment in Congress, in which congress people are more willing to work where the president in order to pass legislation.