How do I understand direct and indirect characterization?

What does it mean to have a bias (for example your bias of bts)?

Which function of nonverbal communication is at work? trey was planning a surprise party for lynn, but when she asked him why they couldn't go out on friday, trey shifted his eyes, coughed, and stuttered when he said he already had plans. what did trey's nonverbal communication do for lynn? clarify the relationship regulate the interaction increase persuasive power reveal discrepancies manage impressions

Was prevalent in art in northwestern europe during the middle ages? a. geometric motifs b. abstraction c. pointillism d. animal style