If you have never been to a user group before let me give you the run down. User groups are a group of people who meet up and talk about a specific topic. Sitecore also has user groups and they are all scattered in different cities.
Sitecore User groups are run by the community for the community. All you need to do is to show up, eat food and watch some cool Sitecore presentations. User groups are your best chance to connect with your local community. Typically they feature a presentation and a chance to chat and ask questions.
I've attended presentations from MVPs to Sitecore employees. You can find your local user group with a quick google search or with the link above. The link contains all user groups with their corresponding country/city. If you have never been out to your local user group I highly recommend it.