Progressive disclosure of information. Use the loading screens to give information about the world. Include item lore on magical items, as was done in the other games. Bits and pieces of knowledge here and there, told as stories, rather than flat facts. Tooltips that become available during conversations that would let players have optional access to additional information on the topics in their conversations. Volo should open up access to a library with info on the areas traveled, people you’ve met, cultures, monsters fought, and other things to provide additional knowledge to players. Standard townsfolk questioning, but be creative.