British equivalent of the American take a look. There seems to be a British fondness for verbal idioms that start with have a–for example, have a go at it (U.S.: give it a try); Are you having a laugh? (the Ricky Gervais’ character’s catch phrase on the TV show “Extras”); and this headline from NOW Magazine: “Charlotte Church: I was having a wee, not sex in embarrassing snaps.” (To make sense of this quote, insert comma after “sex” and know that “snaps” means “photographs” in British tabloid English.)
A Google Ngram of American use of have a look (blue line) and take a look (red line) from 1850-2008 shows they were more or less equally popular until about 1960, when have dropped and take took off. Like many Britishisms, the American use of have a look has steadily and significantly increased in since roughly 1980.
Devotees of Candace Bushnell–a journalist who looks like Suzanne Somers with a polo-club membership–approach her writing the way they might a car wreck or a Peter Greenaway movie: they know it might repel, but they are forced to have a look. (Ginia Bellafante, Time, August 12, 1996)/Complex date calculations aside, we will have a look at a handful of the companies who have withstood the test of time, both at home and abroad. (San Francisco Chronicle, July 18, 2011)