How to be friendly with people you don't know?

You can come off as approachable and friendly by smiling. You can get people's attention by being funny or adding a little humor to the conversation. Don't do anything over the top, but something humorous to break the ice. The main thing is to just approach a person or a group with a friend hello and the rest should fall into place. Remember, you are trying to see if the new person is a good fit for your friendship too. Think of it very casually and don't put too much pressure on yourself.