Generally (I'm sure someone can find an exception) best glide speed is somewhat less than Vy (best climb speed), and probably less than, or in the reigon of Vx (best angle climb).
What I'm wittering about is: You *will* have flying speed (you'd hope so at 50ft, or anything above 0ft really). You may even be faster than Vfe..
Otherwise, common sense:
Nose level/down, quickly assess.
If landing ahead within the field is an option, ignore best glide and get down asap - flap if possible / practical / within limits, sideslip etc - have the accident on the ground if necessary.
If not, trade speed while slowing to best glide, and don't jump for the flaps yet..
and no big turns..