Make the nose

Start out with the typical nose configuration:


Fold wings down

The wing fold starts just aft of the nose and therefore a little up.
This of course is subject to your design and requirements; but I have found the best dimension to be at least 1cm or more behind the nose. I usually make it around 15mm.
This results in a kind of “gullwing” form when it flies – as the airplane will not stay perfectly folded together when you release it.