I've found the best way is to not be scared of the attention but to be grateful for it and open to it. It makes my days better rather than being annoyed that people want my attention.
I could finally quit my job as a bartender and stop dreaming that I might be Superman and know that I was. Then I started thinking about how cool it was.
Well physically preparing for the role, definitely and then continuing to stay physically fit throughout filming, getting up, 4.00 4.30 in the morning.