Talking more than listening
If you are in your twenties, then there is a good chance that everywhere you go, the people around you know more than you do, have more insight to offer to the conversation, and have more valuable stories. In the words of Jodeci, “Don’t talk; just listen.”
Don’t ask your 30-something friend what they think this text thread (then you shove the text thread in their face) means. They know what it means, but that’s not the point—you shouldn’t bother yourself trying to figure out how people feel about you and what people think about you. Just do what you’re proud of in life, and the right people will like you.
You are almost never entitled to anything. There are always people who have been working longer and harder than you, are better-connected than you, and have done more favors than you can imagine, to have the opportunity or thing that you want. If someone could put those details in a document for you, you’d be embarrassed that you ever felt entitled to anything.
Spending money the wrong way
It doesn’t matter what a good deal the booze cruise, the designer handbag, or the loft apartment is. When you cannot afford to put a down payment on a home, you will not be smiling about that good deal anymore.
Speaking poorly about people
If you dislike somebody so much that you have to talk poorly about them, then the mature thing to do is remove them from your life. If you don’t, people won’t feel sorry for you as that person continues to bother you.
Getting cliquey at work
Do not worry about who is cool or who is well-connected at work. Worry about doing a great job and being kind to people. The right people will take notice. Plus, you’d be surprised how often the important people actually can’t stand the cool people, so you may want to keep your distance there.
Failing to do research
Before you jump on a bandwagon to hate or love a person, policy or trend, do your research. Rarely in this life is one person 100 percent right and one person 100 percent wrong, so you should never follow someone who claims to be.