Personal knowledge is a way to increase your credibility as a speaker

Molly is a "touchy-feely" person, always massaging her friends' shoulders and giving friendly hugs. She'd be an __________ on the Touch Apprehension Scale

a. intimate b. extravert c. approacher d. affectionate

Among the elite scientists exploring the reasons for unusual weather patterns and strange meteorological phenomena, one physicist mentions radio waves from outer space. Which group task role is he performing?

a. procedural technician b. gatekeeper-expediter c. evaluator–critic d. initiator-contributor