New Delhi, June 24 (ANI): Vidya Balan has revealed that she would like to spy on Amitabh Bachchan to appease her natural curiosity about him. The 'Dirty Picture' actress said that though the 'Don' star's mannerism is familiar to all, there is there's a "strong aura of mystery" around him and she would like to know more about his "private mode", Gulf News reported. While promoting her upcoming detective comedy flick ' Bobby Jasoos' in Dubai, the National Film Award winner admitted that there are things about the ' Sholay ' star that she has always wondered about and would love to know more about him. The film is set to release on 4th July.