Sure, I'd be glad to provide insights. Here are my thoughts in response to your requests:

Five Tips for a Successful Application

1. Highlight academic qualifications: In my experience, an applicant should crystalize their educational qualifications. Highlight that you meet or exceed the 'Ordinary Level passes' requirement and are pursuing a marketing degree.
2. Showcase interpersonal skills: The job listing emphasizes excellent interpersonal skills. Rewrite your CV, demonstrating how you have applied such skills in previous roles or projects.
3. Tailor your CV to the role: Too many applicants cast a wide net rather than tailoring their CV. Make it clear that you are interested in gaining practical skills and understand that this is a student role.
4. Specify the role in the subject line: Many overlook this step. As per the job listing, you must indicate the position being applied for in your email subject.
5. Include certified documents: Don't forget to attach your academic certificates. It's easy to miss this step in a rush, but omission could cost you the job.

Five Key Areas to Note

1. Job Role: Note that the position is for a student. You're expected to gain practical skills and experience.
2. Emails Only: Applications must be sent via email to the address specified.
3. Required Subject Line: The email subject must clearly indicate the position you're applying for.
4. Certified Documents: You are required to send certified academic certificates along with your CV.
5. No application date mentioned: In the absence of a specific deadline, vacancies in Zimbabwe, like this one, are often competitive. Apply as soon as possible.

Three Keys to Stand Out

1. Show Initiative: Even for job vacancies in Zim, going the extra mile can set you apart. Research the company, understand their brand, and show in your cover letter how you can be an asset.
2. Past Experience: Any previous work experience, internships or project work relevant to the position could be significant. Jobs in Zw often look for something practical to supplement academic knowledge.
3. Unique Qualities: What I've noticed over time is that recruiters love a bit of personality. Make your application unique - tell a story, or share something about yourself that's not on your CV.

Three Important Factors Often Overlooked

1. Job Position Understanding: Many novice applicants fail to understand the nature of the job. Note that this role seeks a student willing to learn and gain experience.
2. Importance of Interpersonal Skills: This isn't just a filler phrase—it holds importance. The role requires excellent interaction abilities.
3. Explicit Instructions: Often overlooked are the explicit instructions on how to apply. These directives, such as email subject and attachment needs, might seem minor but are crucial.

Remember that each job search in Zimbabwe is unique, opportunities like these offer a chance to boost your career. Approach each application strategically, and you might just land that Zimbabwean job you've been aiming for.