You can use private conversations on Skype to send messages or make calls that are encrypted end-to-end.

It's easy to use Google Hangouts on your iPhone to start large group chats. Here's what you need to know to do it.

What’s the best way to start a conversation when meeting someone for the first time, especially at a cocktail party or conference? “Hello, how are you?” is tired and lame. “Are you enjoying the event?