Deus Ex: Human Revolution - Previews

G4TV has made a preview for this game, based on what they saw at GamesCom. An excerpt about the conversation system:

Throughout the conversation, you have to option to use the guard’s depression against him, or assuage his guilt and show him that whatever happened wasn’t his fault. This encounter was relatively easy to navigate, so there was no need to use social augmentations like charm or one that lets you scan your subject’s pupils to get a read on whether they are lying or not, giving you a strategic advantage in the conversation. We chose the “nice” path, which led to the guard happily giving us access to the station. And since we talked our way in, we were free to investigate the entire building (talk to people, use computers to access files, etc.). For the sake of time, we proceeded down to the morgue, got the chip, and calmly and quietly exited the front door without issue.

Digital Spy and GameOn also have previews for this game.