some professional examples You can find some examples here:
archive ( huge list of examples)
your library has access try the journal Ethnography
also the nice multimedia RLO on participant observation produced by UCEL
and discuss the
did the researchers actually do?
how did they gain access to the people they wanted to study?
what problems did they encounter?
how did the researchers participate
unobtrusively yet remain ‘objective’?
how successful do you think they had been?
what preparation do you think you would need to use this research