For what it's worth, in Canada the recommendation is to base the response on bear behaviour, taking into account the bear species. Don't challenge or threaten a bear that's protecting its cubs, or guarding a kill. Do challenge a curious bear, and fight back against predatory bears. Some information here: https://bcparks.ca/plan-your-trip/visit-responsibly/wildlife-safety/#page-section-405
Of course, since bears behave like big dumb humans, the advice mostly also applies to meeting people too :)
The question is so vague as to be essentially useless. It leaves so much to the reader to imagine that everyone is all over the place drawing different conclusions. How much does the reader know about forests? What kind of forest did they imagine? What kind of bear? When the reader imagines a random man, what pops into their mind? Does he live there, or was he randomly kidnapped and placed in the forest for the purpose of the scenario?
Further, even if we go with what some other posters are saying, and ignore the bear, it's still kind of useless, except to highlight how careful women feel they have to be around strange men.