A room is a beginning.
An expo, a business gathering, or an M3 Linked conversation can put you near people you would never meet otherwise. The opportunity is not just to collect introductions. It is to understand what someone is building and whether you can help.
Ask a better question.
What are you working on right now? What would make the next few months easier? Who would be a useful introduction? Questions like these give a conversation a purpose beyond exchanging titles. Listen for the specific thing that matters to the other person.
Make the next step small.
If there is a reason to continue, agree on one next step. Share a useful resource. Make an introduction you are able to make. Arrange a follow-up conversation. Be specific enough that both people know what is supposed to happen.
Follow through like it matters.
Relationships are built in what happens after the event. Keep the context with the contact, remember what you offered, and do it. A dependable follow-through says more about working with you than a polished introduction ever will.