not born yesterday on the lookout

apprehensive careful cautious doubtful incredulous jealous leery mistrustful skeptical wary watchful

cagey green-eyed in doubt questioning quizzical suspect suspecting unbelieving uptight without belief without faith wondering

believing careless certain confident convinced heedless inattentive incautious rash sure thoughtless trusting uncareful undoubting

believable indubious innocent palpable trustworthy trusty undoubted unquestionable