Recruiter reveals the most common job interview blunders made by Gen Zers.

For years, Emily Levine has been conducting job interviews. Since 2010, Levine has been working for Career Group Companies as an executive vice president. She has recruited for a variety of positions, including real estate, consulting, finance, and even some high-profile celebrity personal assistants.

In her over a decade of experience in the field, Levine has witnessed some unusual job interview behavior. The most peculiar occurrences took place in the past year while interviewing younger job candidates, she says. According to Levine, many "Gen Z candidates lack knowledge of interview etiquette."

Recent examples of what not to do, as advised by Levine, include:

One took the interview from bed

Her colleague was interviewing someone for a personal assistant role and asked, "Hi, do you normally take your interviews from bed?" through the wall.

When she dashed to hear the call, she discovered that the candidate had been stating that she was struggling to find employment. When Levine's coworker remarked that appearing for interviews from bed was unprofessional, the candidate replied, "When I'm not feeling so sluggish, I move to the couch."

This candidate was unprofessional and admitted to being lazy during the interview.

Levine states that he has little hope for that candidate.

If you're taking an interview from home, use a desk, kitchen table, or any area with a professional background and a clean room. If not, blur the background or use a stock background.

According to Levine, it's crucial to maintain good eye contact, nod in agreement with the interviewer, and always smile during the interview.

Candidates have come 'completely naked on the bottom'

Candidates have also come in various states of undress.

During the Zoom interview, Levine was not impressed with the candidate who showed up in a bathrobe.

If this candidate doesn't show their best self during the job interview, what else would they think is acceptable when they're actually performing the job?

Needless to say, "she didn't make the cut."

Levine claims that more than one young candidate has worn a work-appropriate top but been "completely naked on the bottom." She found out about their attire when they accidentally moved their phone camera.

Recently, Levine interviewed a young woman for an entry-level HR job. However, the woman didn't seem to realize that behind her was a full-length mirror, which made it seem like she was mooning Levine the entire conversation.

Levine's interview lasted only about five minutes, she says. "It was difficult not to laugh, but I also felt extremely uncomfortable," she admits. This was another example of poor judgment on her part. "And it's just so embarrassing," she adds.

The attire you wear to an interview can vary depending on the industry you're interviewing for. For an investment banking interview, a suit and tie is recommended, but for a fashion interview, more professional chic attire is advised, and something more creative may be suitable for other industries.

Usually, J.Crew, Theory, Ann Taylor, Suitsupply, Zara, and others are great sources of inspiration, she says.

When preparing for a job interview, "just, like, get dressed," Levine advises.

To secure your dream job, enroll in CNBC's online course "How to Ace Your Job Interview," which covers what hiring managers truly value, effective body language, smart responses, and pay negotiation strategies.

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