Orient all edges (~8 moves)
This can be trickier, however again you only need basic rules and no real 'algorithms'.
Orienting means to rotate a cubie so that it 'aligns with the center piece(s)'. An edge can be oriented in two ways, a corner in three. An edge that is correctly oriented will either be aligned already or can be aligned in one move (R of F in this case, when it's positioned in the empty slot).
Here's the simplest way:
- keep the unsolved edge in the RF position
- move R' or F so that the edge in the unsolved corner will be in the last layer with the color of the last layer aligned with the center piece of the last layer.
- move D to position another unsolved bottom layer edge into the empty slot
- repeat from 2 until all edges are oriented
You should be aware that you have 5 edges to orient in this step. It is not possible to have two edges incorrect, which leads to the conclusion that once you have oriented 4 out of 5 edges, the last edge will already be oriented.
Even better, if you have three last layer edges oriented, and the last one is in the 2nd layer, you're done as well: You can turn the cube so that R or R' would move the edge correctly oriented into the last layer, and you can consider it oriented.