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The Daily Politics is testing the mood of the delegates at the Liberal Democrat, Labour and Conservative parties.
For the fifth year running, a few coloured balls and plastic bins - we call them a mood box - are being used in a series of unscientific polls to see what party members think about key issues.
The delegates are asked a question of the day - by Adam Fleming, Giles Dilnot and Eleanor Garnier - and then vote by using their ball and we have a look at the end of the vote to judge the mood of the conference.
Lib Dem delegates asked about airport expansion
Lib Dem delegates asked about Cameron or Miliband coalition
Conservatives delegates asked: EU In or Out choice
Conservatives delegates asked about UKIP or Lib Dem coalition
Labour delegates asked about socialism and socialising
Labour delegates asked about Gordon Brown's future
Labour delegates asked about banning Scottish MPs on English votes