After every step (so up to 4 steps in a turn), you will take the following actions:
...If you're standing on an undiscovered space, you're allowed to turn this tile over."
1) But what happens if I start on an undiscovered space at the beginning of my turn? I don't turn it over, because first I have to draw a current card?
2) What happens after I'm on an undiscovered space after I followed the instructions of the current card? I don't turn it over, because I did non of my 4 steps yet?