In the title " first-day jitter," what does the word jitters most likely mean?

The conventions of a number of the states, having at the time of their adopting the constitution, expressed a desire, in order to prevent misconstruction or abuse of its powers, that further declaratory and restrictive clauses should be added: and as extending the ground of public confidence in the government, will best ensure the beneficent ends of its institution. what is meant by the phrase "further declaratory and restrictive clauses"?

Why do people live together and form societies

Read the dialogue from act ll scene iv of romeo and juliet. which word from the conversation best the reader understand the mood of the scene?