Well it seems like you did an excellent job while you were there. When you meet someone interesting like you did, just have a really laid back conversation and

Well it seems like you did an excellent job while you were there. When you meet someone interesting like you did, just have a really laid back conversation and get to know the person. You don't want to seem pushy or anything like that. Make sure you get their contact info and give them yours when you are there. Then either that night or the next morning, shoot them an email saying how it was really nice to meet them, how much you appreciated any advice or tips they gave you, essentially show them that you paid attention to what they said. Most of the time they will email you back saying similar things. After that it is important to check in every once in a while to maintain the relationship.