frequently regularly doubtfully
Pointing to  the working builders,the contractor replied,"Look at my workers!I can't remember all their names,and even I have no  impression  of some of them.Most of them wear blue shirts.But if you look  [MASK]  ,you will notice a sunburned man in red.He seems to be working harder than others.He is always the first one to work while the last one to leave.It is exactly his red shirt that makes him  stand out  .Soon he will be  promoted  to my assistant.You know,that is also how I got  where  I am now.I worked hard and wore a striped shirt.My boss  noticed  me.I also became a boss eventually."