A good introduction gives both people context and a clear reason 'why these two, why now'. Without that, most introductions quietly go nowhere.
You've probably been on the receiving end of an introduction that went nowhere: a one-line email, 'you two should connect,' both of you CC'd, and then silence. Nobody did anything wrong exactly, but nobody had enough to go on either. A good introduction isn't just a matter of connecting two names. It's a small piece of writing, and like any piece of writing, it can be done well or badly.
The anatomy of an introduction that works
Context for both people: who each person is, in a sentence, written for the other person's benefit, not a resume.
A clear 'why these two, why now.' What specifically made you think of connecting them, at this moment? This is the part most introductions skip, and it's the part that matters most.
Permission first, whenever possible. A double opt-in introduction, checking with both people before making the connection, respects everyone's time and dramatically raises the odds it goes somewhere, because both sides already said yes to the idea.
A light touch on next steps: a suggestion, not an instruction, for what happens next, like a call, a coffee, an email exchange.
Common introduction mistakes
Vague reasons. 'You two should meet' with no explanation of why leaves both people to invent a reason to care, and most won't bother.
One-sided asks. Introducing someone to a busy person purely because the first person wants something, with nothing in it for the second, burns trust with the person you're introducing them to, even if they're too polite to say so.
No context, just a CC. Dropping two people into an email thread with 'meet Alex, meet Jordan' and nothing else forces them to do the work you should have done.
Skipping consent. Introducing two people without checking first can put one or both in an awkward position, especially if one of them is significantly busier, more senior, or less interested than you assumed.
Making the ask for them. Introductions work best when you set the stage and then get out of the way, not when you also try to broker the outcome: 'I think you should hire her' puts words in both people's mouths.
How to write a double opt-in introduction
Ask person A if they'd like to be introduced to person B, and briefly why. This is the opt-in.
Ask person B the same, giving them enough context to genuinely decide, not just enough to feel obligated.
Once both say yes, write one message with both of them included: one sentence of context on each person, one sentence on why you're connecting them now, and a light suggestion for next steps.
Then step back. Your job is done once both people have what they need to take it from there. Resist the urge to keep managing the conversation.
In practice, a message like this does the job: 'Marcus and Elena, I wanted to connect you two. Marcus, Elena runs partnerships at a company that's solved the distribution problem you mentioned last week. Elena, Marcus is looking to expand into exactly the kind of channel you built out. I'll let you two take it from here, thought this could be a useful conversation for both of you.' Notice it's short, it names the reason, and it hands off the conversation instead of trying to run it.
Introducing two people you know well
Resist over-explaining. When you know both people, a shorter, warmer note usually works better than a formal one. The relationship does some of the work for you.
Still name the specific reason. Even with close friends, 'you'd probably get along' is weaker than 'you're both dealing with the same investor right now.'
Prepare each person individually first, if the stakes are real, like a job opportunity or a potential deal. A quick heads-up call or message beats surprising someone in a group thread.
If you use Genius Networking, this is the whole idea behind a matched introduction. It's built to be double opt-in by design, with context on both sides before anyone has to commit to a meeting. The same logic applies whether you're making the introduction with a tool or with your own two hands: consent and context first, then get out of the way.
Be especially careful introducing people across a real power or status gap: a job seeker to a hiring manager, a founder to an investor. Get explicit permission from the more in-demand person before making the ask, and give them a real, easy way to say no. An unwanted introduction in these cases costs you more credibility than a good one earns you.
Frequently asked
Is it rude to ask before introducing two people I already know well?
No, if anything it's the opposite. A quick 'want me to connect you with someone dealing with the same thing?' takes ten seconds and means the introduction lands as a gift instead of an obligation, even between close friends.
What if one person says yes and the other says no?
Let it go gracefully and don't relay the no as a rejection. Just tell the person who said yes that timing isn't right, without detail. Protecting both people's comfort matters more than forcing a connection through.
How much context is too much in an introduction message?
If it's more than two or three sentences per person, trim it. The introduction's job is to open the door and explain why, not to summarize each person's entire career. Save the depth for the conversation the two of them have on their own.