Try this one day.
After an event where you’ve talked to a lot of interesting folks, sit down and write an individualized follow up note to everyone with whom you had a substantive conversation.
It can be short. It just has to be real and personal, meaning that there actually has to be a next step in the conversation/relationship that would make sense.
Now pay attention to how everyone responds. How quickly, how clearly, how personally.
In my experience the people who seem to have the least time are often the ones who respond the most quickly and in the most genuine way.
Makes you wonder which came first: the amazing people they are today, or the behavior of making sure that real connections get acknowledged and amplified.