Here's a little geek tip which may come in handy when you're trying to round-up friends or family for a group picture. It never ceases to amaze me that whenever you try to get a good picture during the evening, one person will always close their eyes (and yes, I'm guilty as well). Kiss your blinking days good-bye as maleKtips has come up with some solutions to this very popular problem.
For instance, whenever you use flash you should try taking two or three photos so that people's eyes can adapt to the flash because most people blink from the anticipation and shock of the bright light in their eyes. Be sure not to go overboard though as too much flash in low lighting can damage the eyes!