Go to a local happy hour - make dinner of happy hour appetizers and if you don't drink, have a soda, coffee, iced tea or water. The point is to get out, meet new people and have fun! This is a great way to unwind after work, enjoy a little something to eat (some places provide enough to make a full meal!), and meet new people. Check out a few different places to see where people go and most importantly, find a place where you feel comfortable.
I used to love to go to a local Mexican restaurant with one of my girlfriends after work. In the summer months, the fruity margaritas were the drink specials and the happy hours goodies were delicious. We could easily spend an hour and a half to two hours and not spend more than $8.00!
It doesn't matter if you have a half hour or two hours, get out with some friends and mingle, it's low pressure and fun!