My wife and I started a neighborhood "Multicultural Picnic" each summer many years ago...always well attended. Families bring potluck food from their cultural backgrounds...but also imbibe what's on a large grill in the park...(Burgers, Franks and Brats (most popular). Did the same thing at our Parish...a 'sell out' each year...even have dancing from a different culture each time.
No need to be fearful...people are people with very similar likes, dislikes and concerns...but you have to get out and meet them to understand this.