You are wearing a silk gown or short dress to a wedding. You are wearing a female tux to a cocktail. Basically, you want to elecate the balls of your feet in a catchy way. Strappy sandals are the way to go. The way each strap demarcates the skin of your feet will keep eyes on them. The complication comes when your outfit is seriously printed or embroidered. Then you want to make sure your straps don't add too much to your look. Wear with discretion.
Here are pictures of models in strappy sandals from Bazaar September 2013.