This is something I found interesting. I’m sure many of us in Second Life have facial expression HUD’s (If you are new that is Heads Up Display – the control panels one attaches to their screen). Those work for some situations and photographs.
If one wants more expression, and sublte expressions, that can be done with changing your shape. Sound a bit scary? If you have tweaked your shape like I have for over a year now, making changes may not sound like fun. However one can back up their shape. There are several ways to do that. The two easy ones are copy the shape in inventory and via Appearance save it as a new shape. I use a name and date so I know which is the latest.