I know this is completely cliche, but always be yourself! When enjoying time with friends, make sure to always show off the true you! Your buddies are the few people who really appreciate you for who you are. So you should never, ever feel embarrassed in front of them, they have your back. Just be yourself, and have fun! Because that's what friends are for, to cheer each other up, and always be there for each other.
Say hello and smile! It's the simplest way to let someone know that they are a nice person, and that you are too. A little goes a long way.
In the Friendship Blog, there are tons of tips on how to make, keep, and celebrate friends. As Oprah Winfrey once said,"Lots of people want to ride in the limo with you, but what you want is someone who will take the bus with you when the limo breaks down."