>>287369649
You approach a group and observe what they're talking about, determine whether it seems appropriate to intrude, then you introduce yourself as a new and from /vrg/ and say something relevant to their conversation based on your own experience but not antagonistic/disagreeing unless you really know what you're doing. From there you can get laughs or delve into interesting discussions. Optionally, try this on an individual rather than a group to make things a lot easier. 

Just keep doing it until someone/group takes you in and teach you the ropes. This is usually possible unless you're a total asshole.