Volume, rate of speech, facial expressions, and gestures are constructs MOST commonly associated with:

Volume, rate of speech, facial expressions, and gestures are constructs MOST commonly associated with extralinguistic information

Explanation:

Extralinguistic information -:    We will obtain some extra information along with language when interacting with others. This extra data is volume, speech rate, facial expressions, movements, etc. This additional information is called extralinguistic data.  

To understand the inner sense of the words, this extralinguistic data is very important. It can often express more information than words.

Hence , the answer is extralinguistic information .

rain should be the answer.