A.
Example,
While John was lying on his bed, Jack was outside playing soccer.
I'm not exactly sure, but to use common sense, I'd say eye-contact. You explicitly said, "nonverbal," and eye-contact is the most reasonable one.
Answer:
It's is a contraction and should be used where a sentence would normally read "it is." The apostrophe indicates that part of a word has been removed. Its with no apostrophe, on the other hand, is the possessive word, like "his" and "her," for nouns without gender.
I’m pretty sure it is a simple sentence
