I just wanna know how people know their objectives, i can see playing this game will be impossible if i can't quest.

big red circle on map kill things till quest done.

Correct. I always found that pressing 'm' to open the world map and hover over these red circles with your computer mouse, you can see the names of he things you need to kill/collect.

Compare the TW characters to the ones to you see in the quest you've accepted and that gives you a pretty good idea of what you need to do!

thanks guys :)