1. This is a new release, and as always in the beginning some people are experiencing problems logging in. The mac client for example isn't yet available as well, so the number of people online is lower than it will be later on this week. Popular places however include Harnquist and Kada-El's tavern in Hydlaa, and Brado's in Akkaio.
2+3. You can try doing some NPC quests, or you can jump into some roleplay immediately - make friends, perhaps try to find a guild for your character, etc. Check the "Guides and Tutorials" subsection for some tips.
