No doubt he can charm anyone (especially ladies) if he want. Pooja Bedi and Juhi are totally mesmerized by him. He fought with Mahak when he wanted and patch up again on his own will. Moreover he tamed the wild Pooja Mishra as well. He is very shrewd and a charmer for sure.
I think out of all house-mates its only Amar who knows the reality of sky. And he tauntingly said it to sky too that YOU are the one who is the smartest player in the home.
Amar is not smart at all. Out of all house-mates he is in good terms with only Sharadda. Sky showed his true colors while fight with Mahak but he immediately realized his mistake and since then he is trying his best to be in good books of everyone, sometimes by joking, sometimes by flattering and sometimes by gossiping about others. And this is the reason he got elected as captain.