grimace /grimˈəs or gri-māsˈ/

1. A distortion of the face, in fun, disgust, etc
2. A smirk

To make grimaces

grimˈacer noun

• hostile witness
• hostile witnesses
• hostilities
• hostility
• hosting
• hostings
• hostler
• hostlers
• hostlesse
• hostries
• hostry
• hosts
• hot
• hot air
• hot-air
• hot-air balloon
• hot-air balloons
• hot and bothered
• hot-and-hot
• hotbed
• hotbeds
• hot blast
• hot blasts
• hot-blooded
• hot-brain