British & Australian, informal to look around a place.
He left the room for a few minutes so I thought I'd have a nose round.
idiomhave a nose round BrEBrEto look around a place or to look for something, especially when it is someone else's place and you are not supposed to be there:I had a nose round but I couldn't find where he keeps the whisky.There was a big new shopping centre, and after having a nose round she went into the shiny new coffee shop.
have a nose (round)
To look around or examine a particular place. Cathy is such a snoop—any time she comes to our house, she just has to have a nose round.
have a nose ˈround
(British English, informal) look around a place; look for something in a place: Let’s have a quick nose round before we leave.