"Though the wolf whistle has long been a way of open and expressive flirtation, it is rarely well received by its female recipients. Those expressing satisfaction of someone’s sexual appeal should use caution, especially in certain situations. In the work place for example, even a seemingly innocent wolf whistle could be deemed sexual harassment"
"Further, depending on the company of the target and how offensive she may find it, a wolf whistler could find himself in an awkward position to say the least".
Photos via BackyardBill