The small thing you did to make someone comfortable may be the part of the gathering they remember.

People remember gatherings unevenly. The menu and the decoration fade quickly, while the moment someone found them a chair, checked they had eaten, or steered them out of an awkward conversation stays for years. Comfort registers personally in a way that presentation does not.

At the next thing you host or attend, spend your attention on one person who looks adrift rather than on the arrangements. Bring them a drink, make one introduction, sit with them for ten minutes. It will cost you almost nothing and may be the whole evening for them.