I've had a lot of people asking how I do my whiskers so I did this thing up real quick while i was finishing a head. This is not super detailed but it should be enough to shed at least some light on my process.

Assemble supplies, example being:
Fursuit head that needs whiskers (obviously... I hope)
Fishing line
Something long and thin to part the fur (I use a styling comb)
Hot glue gun
Hot glue sticks
Scissors

I suggest cutting out whiskers in clumps before starting to install them, it makes the process go much quicker.

Basically part the fur where you want the whisker(s), I do only one at a time.

Put tip of whisker into glue nozzle to cover it in glue.

Put whisker tip which is now covered in glue into parted fur, This is time sensitive!

Once its placed in squish the fur back onto the whisker and hold for a few seconds until glue is set.

And repeat 30-80 times depending on amount of whiskers.