Most Helpful Guy
They are old men with no excitement in their lives most likely. Seeing you probably brightened there days, but I don't understand why they have to react such a way. Sometimes you can't help looking, but whistling etc is rude.
Most Helpful Girl
I was catcalled at the grocery store helping my GRANDMA push her shopping cart to the car. They said "you can push my shopping cart all day sweetie (followed by a whistle)", I was 13 years old. It definitely comes off as creepy.