I use Gorilla glue....

BUT!!! YOU MUST KEEP AN EYE ON IT!
Do not glue, then go to bed or something......

Dry fit everything then.....
What I do is put a drop of water in the slot(for flat) or hole(for pin) then put a a bit of vaseline right on the hinge.. don't get it on anything but the hinge portion...
then put a thin layer of GG on the hinge and put it in the hole....
wipe off any excess.....
in about 30 minutes come back.... wipe off any excess that has expanded out and flex the hinge a couple times to make sure no glue is getting into the hinge....
do this every 30 minutes for about 2 to 3 hrs.....
done....

I put all the hinges in one side first (either the trailing edge of the control surface) when those are dry I then attach the surface....

Sounds like a pain but it isn't too bad and I have never had one fail.......