get_simple_path() basically gives you an array of points, so
var the_path = Navigation.get_simple_path(start_point, end_point) #gets the path
your_player.look_at(the_path) #looks at the 4th point of the path array
Typically you'll want a
KinematicBody that walks along the this path like this.
look_at(the_path[current_point]) #current_point is an int variable
if global_transform.origin.distance_to(point[current_point]) < 1:
current_point += 1
It's also possible to use a
Path node and a
PathFollow node but they're a bit more arduous to work with in this context so I wouldn't recommend it.