After his bris milah we are told that Avraham sat at the entrance of his tent.
Rashi explains this was to see if there were עובר ושב, passerby so he would bring them into his house and offer hospitality. A deeper insight: Avraham was specifically watching for those who were ovrei v’shav in the most literal sense—people who approached the entrance and then turned away. These were individuals who came close, but were too meek, too embarrassed, or too intimidated to knock. Like poor people who reach the door of a wealthy man, only to turn back out of shame. Avraham understood that such people would never ask for help on their own. His greatness lay in his sensitivity—he went out of his way to look for those who could not bring themselves to engage. Those were the ones Avraham made sure to care for.
We should apply this to our lives. Someone may attend a Torah class, or some event, and then disappear. Not because they weren’t interested, but because they felt they didn’t belong. All they needed was that person to reach out to them.
Or you may have a person standing near a kiddush, glance around, then slip out. They want connection but feel awkward, unseen, or unworthy of joining. We must walk in Avraham’s ways and reach out to such people.