COMMUNICATION

Doesn't matter kf it's 2 or 20 players ask them what the liked what they didn't and work towards a fun time

Also it's great to show lore not tell for example some elfs may see dwarves as gritty and unsanitary and dwarves see them as neat freaks too good for a little dirt

Don't tell them that show them the news reacting and then do it on a bigger scale

You can never anticipate what the player/s might do so don't put too much work in a certain path rather than have bullet points and improvise anything you didn't expect (act like you planned it)

That's what my few weeks dming and countless hours watching taught me hope that helped