Sigh... go join a gym, a cooking class, go to art museums, join
SDU, chat on IRC, go on their outings. If it's me, i'll join a
dance class or yoga class, or perhaps a foreign language class and
meet people. 
If it suits you then go to some pubs. Not really recommended.
Other than that, be on your best behaviour. Not wimpy but stylish
like James Bond, Sean Connery, etc. Don't be too desperate looking
and open your mouth, to ask for handphone nos. Good luck!