Most international students never once step inside an American home. One Thanksgiving invitation through a campus ministry often turns into the friendship that reaches a family overseas.
A student flies in from Lagos or Chengdu, spends four years here, and goes home having never seen the inside of an American house. That happens to most of them.
Then they go home and become somebody who matters there. The dinner table is the cheapest missions budget there is.
We eat at 6 on Thursdays and there's room. Come as often as you want, and bring whoever you're living with.
Do not neglect to show hospitality to strangers, for thereby some have entertained angels unawares. — Hebrews 13:2