You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For consistency, answers should be in all lower cased letters.

Category: A NEBRASKA CORNHUSKER, OR... 
Clue: QB of Nebraska's all-century team Tommie, or boxing's "Smokin' Joe"
frazier

Category: BODY LANGUAGE 
Clue: When vou're idle or just plain bored, you do this with your pollex digits, literally or figuratively
twiddle your thumbs

Category: NATIONAL HISTORIC SITES 
Clue: The armory in this Mass. town was  America's small arms manufacturer for nearly 200 years

springfield