The main level of Limsa Lominsa tends to be one of the more popular hang-out areas during primetime, but you will also start seeing more people hanging out in the main towns from the most recent (Stormblood) expansion content (particularly Kugane and Rhalgr's Reach). At the same time this is a game where most of the content is in instances, and also many FCs have housing, so it's not quite like some other games where the towns are bustling with players. This game also has no global chat, so that is another thing that can make some other MMOs seem more "alive." This game is really more geared towards finding an FC, or making connections with players through linkshells or other ways.