You can tell a captain just by observing him . . Body language on the field, in press conferences, in interviews, in his depth of thinking/communication, in his team selections, tactical decisions on the field, etc . .
All captains are different but above are some traits that make good captains of all sorts stand out . . Angry, passionate, authoritative, cool and calm, strategists, introverted, and a blend . .
Babar unfortunately exhibits almost none of the qualities of being a good leader . . While obviously I can't comment on his demeanour off the field and I am sure he is very supportive and commands a lot of respect in the dressing room due to his stature. . From what I can see, read, observe . . He seems to have very limited leadership qualities. .
In fact, as a massive fan of Babars batting, I fear for his batting performances once the pressure gets amped up which it will soon. . He should go on to become the best Pak batsman ever by a country mile . . Anything short of that will be a travesty! Giving him the burden of captaincy for me is an obstacle . .
I truly hope I am wrong . . But to answer the question . . My expectation is for him to have a very substandard captaincy stint (not just in terms of results but also in terms of how he carries himself, his decision making, etc.) . . I expect him to come under immense pressure (like azhar ali has after the England tour) . . And I expect his batting performances to go down under that pressure. .
And just want to add a word on the inability of our board to recognize and groom captains. . Babar is captain because he's our best player . . Thar should never be the criteria for leadership!
