Being able to effectively communicate how stoked or miserable you are is an important life skill—and a vital element for having a great time on the trail. It will make the difference between a successful cohesive group and a disastrous exploratory malfunction.
If you're having trouble coming up with the exact words to express your excitement or pain, consult this sliding scale for inspiration. Perhaps consider laminating one so when things get so bad you can’t form complete sentences you can resort to grunting and pointing instead.