Don't judge them by their accent

But what if what comes out of their mouths is a smaller mouth like in the Alien films, do you then judge them by the fact a smaller mouth came from their mouth or judge them by what comes from the smaller mouth?

If either of the mouths say anything intelligent, I'll judge it positively, but I'll still be somewhat suspicious of their anatomy. If it tries to kill me like it usually does in the movies, I won't have enough time to judge because I'll run away, trying to save my life.