This advice may be more for senior folks, those who have been in the business for a long time. But, as a junior, pay attention.
Sometimes it just takes a little thing - define thing however you'd like - to make someone feel appreciated.
It might be saying thank you. Or buying them a coke from the soda machine. Or acknowledging long hours. Or calling them out in front of the agency for a job well done.
Sometimes that one little thing makes a person feel appreciated. And I can tell you, that goes a long way.
As our days get more hectic and we are cranking on more projects, the niceness and gratefulness get forgotten. We forget to say "thanks" and "good job" and "you are so great at what you do" cuz we're just too, too busy. Well, be as busy as you want, but when someone gives their notice I'd bet that makes you stop for a second. Why not stop for a second while your valuable employees are still with you?
Because these little things add up. Either in a bad way, when time after time an employee feels slighted because no one is appreciating them. Or in a good way, when an employee feels great about what they do and they become all that much more committed to the company and the job they are doing.
Today, I was genuinely and wholeheartedly thanked by someone for showing them an ounce of appreciation on a project they'd worked their ass off on. Genuine proof that small gestures have big impact.