yes. however many times. just writing straight from the head without thinking, ends up with the wrong landing initially, but thats what drafts are for and proof reading

its the difference between 'walks' vs 'hobbles'.. 'looks' vs 'notices'

a boy sees an old man walking down a street
a boy recognised an old man walking down a street

the first sounds like just a meaningless passing glance
the second lands more like there is some relationship that might get explained later, or hints the boy is having thoughts about the person more so than just a passing glance

that one word change puts a unanswered question into the readers mind
the second one makes the reader intrigued to read on, hoping to find out more about the story between the boy/old mans relationship,