From Longman Dictionary of Contemporary Englishmake noises about doing somethingmake noises about doing somethingto say that you are considering doing something He is now making noises about starting his own business. → noise
Examples from the Corpus
make noises about doing something• Apparently Bradford is interested in having it and Bristol has also made noises about it.• I made noises about the absence of a bank in this so-called international airport; but what choice did I have?• It was extended, but the Provisionals continued to make noises about renewing the violence. 