With regards to those emoticons, the lineup is quite impressive: typing factors like “/shrug”, “/facepalm” or “/tableflip” into the chatbox will automatically change to (╯°□°)╯︵ ┻━┻.
Here’s the full list of commands (and don’t forget the forward slash at the front):
Finally, if you actually hate switching apps to open links in a chat, that in-app browser can be accessed by flipping the “Browr in Hangouts” button in the settings tab. According to Android Police, even so, this selection does not show up on each and every Android device. Sorry, Nexus five owners, guess you are going to have to /dealwithit.