What should I wear?
Q: What should I wear?
A: Whatever makes you happy.
Q: But what is [your mom, your dad, your cousin Gus] wearing?
A: I don't know. Probably something involving pants and/or a dress.
Q: But how will I know what to wear?
A: If you have a standard "I wear this to weddings" outfit, I'm sure that'll be fine. If you're interested in matching the "theme", wear something monochrome, in a sort of 50's-ish cocktail-attire style. If you like bright colors, wear bright colors. If you're worried about sunburn, bring sunblock or a parasol or a big floppy hat. It's an outdoor, morning wedding in June, so I'd recommend against breaking out your full-length black wool burqua or the outfit you wore to climb the Himalayas.