The "point" and "smell" part of the equation has been taken care of by hundreds of years of breeding.
What you have to teach is manners. If you are fortunate enough to have access to A LOT of wild birds that will teach the dog these manners over the course of repeated contacts, then you are fortunate and will be well on your way. Just get him out in the field.
If not, then there are a lot of things that can be done with non game birds (i.e. pigeons, liberated quail and chuckers, etc.) that will help speed his progress.
It sounds like you're starting from scratch. Do some reading and try to find a local mentor to help you get started. Attending a field trial, Pheasants Forever or Ruffed Grouse Society banquets are good places to start.
"How to train a bird dog" is a bit beyond the scope of an internet forum. Lots of good folks here that can help with specific questions as they come up.
Good luck and enjoy the ride.