She started 'making noises''about' running for office. [=she started saying things that showed she was thinking about running for office]
Politicians are 'making (all) the right noises' about improving the schools, but they don't want to spend any money to do it.
Congress has been 'making' (a lot of) 'noise' about lowering taxes, but no one expects it to happen.
(..) We have to get out of here. You might want to speak in a lower register. What? Evolution has made women sensitive to high-pitched noises while they sleep so that they'll be roused by a crying baby. If you want to avoid waking her, speak in a lower register. (..)2007 TvShow: The Big Bang Theory Title: The Big Bran Hypothesis Season: 1 Episode 2