i'd say the game is pretty "dead" compared top a few years ago, but its not really dead
you can find enough people in lions arch and kamadan, in kaineng center there are less people
then, if you go to american districts, you'll see most people from europe and america
so the game is NOT dead, and guildwars 2 will be much more active
watch out for kamadan america district, as they are flooding chat because there are most people who trade, like selling and buying
but if you wanna join a nice guild, search for an active one, avoid guilds with mostly pvp players if you wanna play pve, and find a guild with alot of active members, and then those who do pve
its hard to find the guild which fits you best, but you can still find good enough guilds
and new people always get more help than anyone else, to let em feel good
good luck finding the right guild and people, and have as much fun as you like