3 couples coming for drinks before dinner

I like Lisa's suggestion of lighter wines! I would go very light on any appetizers, a small cheese and charcuterie platter, or a simple homemade cheese spread along with really good crackers or loaf of bread. Or perhaps some nuts, seasonal fruit or an olive tapenade. You don't want to fill guests up before a lovely upscale dinner.

Pitcher of non-alcoholic for all sophisticated drinks (so designated drivers don't feel excluded or suffering), with complementary food, for ex:
1) Homemade limeade with mini tacos, empanadas, etc
2) homemade lemonade with fish canapes
3) homemade mango lemonade with mini samosas, pakoras, etc
4) artisanal bitters in fuzzy water with some vegetable or cheese galette