How to dry foxglove seeds?

I just spread my seeds out on paper towels, paper plates or even wax paper in an area where they won't get knocked or blown off to dry until they don't stick.
If the first lot of seeds is at all fuzzy, get rid of them. Otherwise, you can do as above but try to separate any clumps with the end of something metal like a screwdriver tip (less likely to stick).

I always just shake the seed pods where they are and move the seedlings to where i want them saves me a lot of faffing about