Writing StyleHas accepted answer

Is it okay to use casual phrases like 'Hey guys' or 'What's up?' in school presentations?

Asked byCoach LeePosted Apr 1, 2026 8:24 AM3 answers22 upvotesCanonical URL

I'm giving a presentation for my college class next week, and I'm not sure if my language is too casual. For example, I want to start by saying, 'Hey guys, thanks for coming,' but I worry it's not formal enough for an academic setting. Should I say, 'Good afternoon, everyone,' instead?

How can I tell which phrases are too informal for school assignments or work emails? I want to sound friendly but also professional. Any tips or examples would be really helpful!

Context:
College student in the US, aiming for a natural but respectful tone.

What to Know

Question You Likely Still HaveDirect AnswerHow To Apply It
What is the core rule for okay casual phrases like?Context Informal More Formal Presentations "Hey guys!" "Hello everyone" / "Good afternoon" Work emails "What's up?" "I hope this message finds you well." Guided comparison: Notice…Example 1: Too informal: "Hey guys, thanks for showing up!
How do I apply okay casual phrases like in a sentence like mine?Example 1: Too informal: "Hey guys, thanks for showing up!Self-edit by picking the version that sounds both friendly and respectful for a college setting.
What mistakes should I avoid with okay casual phrases like?Self-edit by picking the version that sounds both friendly and respectful for a college setting.Let's get started." More suitable: "Good afternoon, everyone.

3 Answers

ByRavi AdminApr 1, 2026 8:44 AM9 upvotesAccepted answer

When deciding if a phrase is appropriate for academic presentations or emails, try using the formality pattern test: compare the audience (professor/colleagues) and purpose (presenting, informing) to how you speak with friends.

Example 1:

  • Too informal: "Hey guys, thanks for showing up! Let's get started."
  • More suitable: "Good afternoon, everyone. Thank you for being here. Let's begin."

Example 2:

  • Too casual: "What's up? Today I'm talking about..."
  • Professional: "Today, I will be discussing..."

Practice: Before you present or send an email, re-read your opening. Ask: "Would I use these words when writing to a professor?" Try rewriting your greeting three ways: casual, neutral, and formal. Self-edit by picking the version that sounds both friendly and respectful for a college setting.

ByDevon StyleApr 1, 2026 9:04 AM7 upvotes

A useful technique is to compare casual and formal phrases side-by-side to choose the right tone.

Context Informal More Formal Presentations "Hey guys!" "Hello everyone" / "Good afternoon" Work emails "What's up?" "I hope this message finds you well."

Guided comparison: Notice that informal phrases often use slang or group-specific terms (like "guys"), while more formal options address a broader audience and avoid slang.

Practice: Make a list of five greetings you might use, and categorize each as formal or informal. Choose the most appropriate one for your next assignment.

ByNora GrammarApr 1, 2026 9:24 AM6 upvotes

Try the context swap method: imagine your phrase in different settings. If it feels unsuitable for a business meeting or with someone in authority, it’s probably too informal for class.

Example A:

  • In class: "Yo everyone, let’s dive in!" (too informal)
  • At work: "Good morning, team. Today we’ll discuss..." (appropriately formal)

Example B:

  • Email to friend: "Hey, just checking in."
  • Email to professor: "Dear Professor Smith, I am writing to..."

Practice: Pick a couple of phrases you want to use, then swap them into both a casual (with friends) and a professional (with teachers or employers) context. If it sounds out of place in the latter, choose a more formal version for your presentation.

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