Fold all the corners along line 2 so that they meet in the centre of the smaller square
Fold all the corners along line 3 so that they meet in the centre of the smaller still square
Fold all the corners backwards along line 4 so that they meet in the centre of the square
From the underneath pull up all 4 corners to form a set of petals
Reach underneath again and pull up the next four corners to form a second set of petals
Reach underneath again to pull up the final set of petals to form the origami rose