how do we define nationalism? what are the actions that can be considered to be nationalistic?

Answer 1

Look to Ernest Gellner and Benedict Anderson for modern theories of nationalism, and how nationalist myths are invented.

Answer 2

Nationalism is loyalty to the country and service to it.

To be nationalistic, one must do the following:
To volunteer in the army in case of war against other states,
To be employed gainfully and pay the proper taxes,
To support legal government projects,
To respect the flag and perform other government duties, and
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