A poster session is not a transaction, and treating it like one is the fastest way to ensure you get nothing from it. The reader who asks, "Is this how I should be extracting networking value?" has already misunderstood the assignment. They are not alone, but they are also not stuck. The real value of a 15-minute conversation at ICLR is not the follow-up email asking about internships; it is the quality of the conversation itself. If you walk up to a poster with the sole goal of being remembered, you will be remembered as someone who wanted something. If you walk up with genuine curiosity about the work, you might be remembered as someone worth talking to again.
The good news is that the reader is already halfway there. They mention asking insightful questions and discussing shared research interests. That is the right instinct. The mistake is in the framing: they are not extracting value from the author; they are building a connection with a peer. Authors are not overwhelmed by thoughtful questions about their work. They are overwhelmed by vague requests, unsolicited pitches, and the sheer volume of people who see them as a vending machine for referrals. A question that shows you read the paper, that engages with a specific choice or trade-off, that offers a small observation of your own, that is a different thing entirely. That is a conversation. That is the thing that makes the email later feel like a follow-up rather than a cold outreach.
So yes, the poster session is the differentiator, but only if you treat it as the start of a relationship, not the end of a sales pitch. When you email afterward, do not lead with "Do you have internships?" Lead with something specific from your conversation. Reference a point they made, a question you asked, or a direction you found interesting. Then, and only then, can you mention that you are exploring industry roles and would value their perspective. That is not a request for a favor; it is an invitation to continue a dialogue. The author will remember the conversation, but more importantly, they will remember that you were a person who engaged with ideas, not just a resume with a badge.
The practical takeaway is this: do not optimize for the number of posters you visit or the number of emails you send. Optimize for the depth of two or three interactions. If you leave a poster session having had one genuine exchange that felt like a peer discussion, you have already succeeded. The internship email becomes a natural next step, not a shot in the dark. And if the researcher is too busy to respond, that is fine. You did not lose anything. You gained practice in being the kind of researcher others want to talk to. That is the skill that outlasts any single conference season.