Evon, Computer geeks and nerds, who form majority of this group need to be managed on matters social. Some of us have no social skills whatsoever and suffer from schizoid personality and/or borderline personality disorder.
So if you really want to see people from this group meet and interact;
1. Choose a location close to a place that wreaks of science e.g Pub or restaurant near the "Kenya Space Agency" HQ :-)
2. Have a Chess board(s) around
3. Don't limit ideas or agendas to business...
4. Have something interesting or new at the venue... Like "Buy your bitcoins here" stand with John's guys manning it
5. Ensure you have a good ratio of the ladies and gents (This is hard to achieve unless the parking lot is full of SUV's, pontiac and sports)
6. Stand on a chair or stool if you have to and introduce yourself as Evon, request that all move close to one another and walk around and say hi to everyone individually, identifying the shy from the bold sales types... "variable declaration" :-)