Jacobsword

Hi sorry if this comes off as rude I just started playing about a couple of days ago. I love how improved the game has gotten since 2014 when I first checked it out. I was wondering though what mmo stuff can I do in the game cause so far I see other people and can talk to them but thats about it. I know I could probably trade or battle with them thats a given but is there anything else you can do with other players?