Simulating Descriptions: Once your descriptions are linked to any geometry you can draw curves driving the hair's distribution on the surface. When your distribution is simulating along the guide curves you can retouch your grooming and add modifiers like noise, clump, cut, etc.
If you want to find out more about simulations and VFX, click on these links:
Maya cMuscle for Skinning: https://www.3dartviz.com/skills/skills-3d/vfx/skinning-muscle-human-character.html
Simulating Clothes: https://www.3dartviz.com/skills/skills-3d/vfx/simulating-clothes-ncloth.html
VFX for Environment: https://www.3dartviz.com/skills/skills-3d/vfx/simulating-vfx-environment.html
Simulating a Fluid Injection: https://www.3dartviz.com/skills/skills-3d/vfx/simulating-fluid-injection.html
VFX Workflow: https://www.3dartviz.com/skills/skills-3d/vfx/vfx-workflow-short-film.html
Simulation in viewport (Maya).