under 30's - good places for social/networking happy hours?

following my last popular thread about meeting friends / partners in toronto, i'm curious if there's any social and live bars / places good for happy hour?

i know a lot of people commute out of DT, but it's kinda nice to grab a small bite / drink after work and discounted too. and making friends outside of uni is harder since you don't always bump into people. are there any tips for this? would people be interested in doing a social hang out type thing maybe? finding ways to more network/meet friends working in DT or GTA. would love to check out some relaxed spots and if anyone has ideas?!