man is unconvinced about something

about adult age aged cautious closeup curious dilemma disbelief disputable dissenting distrusting doubtful doubting dubious eyebrow eyes face facial fellow gentleman glasses guy head hesitant indecisive inquiring inquisitive interested look looking male man middle nonbelieving people perplexed person portrait puzzled questionable questioning serious skeptical something suspicious troubled unbelieving uncertain unconvinced unsettled unsure