Besides whatever
Here's one of my recent group shots from celebrating two of my brothers' birthdays, Kevin Huang and Brian Phagley.
I placed my external flash on its own shoe and balanced it off of a couch to camera left, so it was about 3ft high, and the camera was shot from approximately 5'5" on a tripod with a radio trigger.

To do:
1) Put on a lens hood. I didn't realize the amount of lens flare I had caught from the flash. It took a lot of time photoshopping the circles out.
2) Use a light stand and set the flash off to the side.
2) Use the Stofen diffuser. This would level my bounce, and hopefully help avoid the problem of foreground overexposure and rear underexposure.
3) Use a gel. The warm lamp pulls focus to it.
4) Turn off the lamp
5) Check histogram. I well over-exposed the shot.