"You see a man in his twenties enter coming from..."
you get
"You see a man in his twenties sneaking in coming from..."
This will make things more realistic. If you find an unlocked vehicle, you will have a chance of slipping away with it, with out anyone noticing. Or you could slip into a store room, try and sneak into a meeting or just leave a town without being noticed (perhaps to throw of persuers or just because you want to get away for whatever reason)... just how it would be in RL. Ofcourse, the more people around, the more chance of being spotted by someone who will take action. And it also means that people trying to steal cant get away with saying they were just looking around, as anyone who spotted them would see that they were sneaking around not walking normaly...
You could also make sneaking a skill... those better being less likely of being seen. Meaning that you could have some highly skilled thieves who could actualy make a living from it... something which is almost impossible to do at the moment...
Finnaly, you could perhaps also make perseption a skill... being more likely to spot people sneaking... this would make people more or less effective at being gaurds.
I dont remember seeing any of this posted before, so i hope its a new idea
