birthday present mahjong setSenior‑activity‑coordinators‑working‑within‑Augusta‑observe‑that‑regular‑mahjong‑game‑participation‑helps‑older‑adult‑residents‑maintain‑good‑cognitive‑function‑while‑also‑building‑stable‑meaningful‑peer‑friendship‑networks‑within‑their‑local‑community‑environment.