have a poke around
To investigate or look through something, typically a place or area, often casually. Please tell me that the cops won't find any incriminating evidence if they have a poke around your office. I had a poke around in the archives, and I found several unlabeled files.
have a ˌpoke aˈround
(informal) look carefully around a place to see what you can find; try to find out information about somebody/something: I thought I’d go and have a poke around the new shopping mall later. Do you want to come with me?