I'll tell you bout how i met my expart friends
i go to the Equatorial coffe shop in Riverwalk Mall quite often. This one time i was having coffee with my other friend who is a photographer, a gentlemen seating not far from whre we were came over to introduce himself and to admire my friend's camera. the he joined us and we started talking bout photography.
we found out later in the conversation that the getleman was new in Botswana and needed somebody to show him around and we offered to our assistance. we met up with him the next day and he brought a friend.
Most people in botswana are quite friendly, so if you introduce yourself and ask nicely, most would be willing to help. But communication may be a bit of a problem as ost shy away from speaking English but other than that, thats that.