Sebastiaan ter Burg/Flickr

2. How to receive criticism

No one likes to be told they’re wrong or even that they could be doing something more effectively. As Abhinav Gupta writes, it’s easy to resent the person critiquing you or completely ignore them.

Nonetheless, Gupta says, “in order to succeed in life you should always accept criticism and always respond positively to it and never think ill of people who point out your mistakes.”

University of Exeter/Flickr

3. How to start an interesting conversation

“Conversation-making is probably the most underrated skill,” says Deepak Mehta, who admits that he’s a shy person who’s always found it difficult.

But experience has taught him that if you dare to strike up a discussion with the person next to you, you might very well end up with a new friend, a business connection, or some novel insights on an old topic.

Sebastiaan ter Burg/Flickr

4. How to ask for something you want

“The ability to ask is the easiest, most underutilized skill to catapult your career,” writes an anonymous user.

But if you don’t muster up the courage to request a raise, a promotion, or a bigger sales deal, you have no chance of getting it.

If the thought of requesting what you want makes you anxious, the user suggests practicing in non-work-related contexts. For example, you could ask a vendor at a farmer’s market for a lower price on your vegetables.

“The more you put yourself in uncomfortable situations,” the user writes, “the more likely you’ll decide they’re not that uncomfortable after all.”

Flickr / reynermedia

5. How to keep your promises

Maybe you told a friend you’d show up to his birthday party, or maybe you agreed to finish an extra assignment for your boss. Whatever the situation, you should make good on your word.

“Break [your promise] and people lose trust and faith in you, which, over time, is very hard to mend,” Hoffman says.

VFS Digital Design/flickr

6. How to communicate effectively

No matter your career field, you can always improve the way you speak and write.

“Think about ways to challenge yourself and tweak how you write an email or behave in a meeting,” the anonymous user suggests.

Here’s an example: “During your next team meeting, resist talking about your idea or opinion right off the bat. Instead, count to five, and if you still feel like you have something relevant to contribute, speak up. On the flip side, if you’re shy, challenge yourself to say what you’re thinking, instead of remaining silent.”

Robert Benner Sr./Flickr

7. How to be resilient

The rest of your life is bound to include setbacks, sadness, and frustration (in addition to joy and excitement!). Carolyn Cho says you should use your early adulthood to figure out how to recover from mishaps:

Your 20s [are] a time when most are relatively free of the responsibilities that will increase into your 30s and 40s. This is a great time to experiment, fail, and bounce back. Learn how to ride out failure and persevere.

Life is full of challenges. The 20s are a great time to toughen up and start teaching yourself how to be emotionally and mentally resilient enough to weather both the joys and hardships to come.

Andrew Toth/Getty Images

8. How to demonstrate good table manners

“A lot of interviews take place over meals,” writes Drew Pavilonis.

“Chewing loudly, or eating with your mouth open, licking fingers and utensils (yes, I’ve seen it), elbows on the table, just shows a lack of manners and social skills.”

Flickr/Graeme Maclean

9. How to manage your anger

Syed Muswair Abbas Rizvi argues that you can channel your rage and frustration in positive directions instead of lashing out at the people around you. For example, research suggests that anger can stimulate creativity, at least temporarily.

“Your anger can empower you to do the unthinkable and unimaginable things, if you just learn the art to master and manage your anger.”

Flickr/Pictures of Money

10. How to live within your means

Cho advises young adults to think carefully about all their expenditures:

“Luxuries are a wonderful thing only if you can truly afford them. Don’t be a slave to funding a lifestyle that will not last. Learn to live modestly and save up, and then you will have earned the right to purchase yourself some treats, in moderation.”

zoetnet/flickr

11. How to deal with rejection

Many people use their 20s to try new experiences, jobs, and romantic partners. Some of those attempts will work out, and some won’t.

According to Joe Choi, it’s a good opportunity to learn how to deal with rejection, whether it’s from a dream employer or a date: “It’s a tough pill to swallow but realize that rejection is quite normal. It’s hardly ever personal and most importantly it’s not the end of the world. Don’t dwell on it. Keep your head high and keep trucking along.”

Flickr/FaceMePLS

12. How to learn without a textbook

Studying should not be limited to your time in school. It “can be anywhere, anytime, and with anyone,” writes Lenny Kho. “Keep your mind wide open.”

You should always be seeking out new ways to expand your mind. Read books, practice speaking foreign languages, or take music lessons — whatever excites you most.

06photo/Shutterstock

13. How to accept the possibility of change

Research by psychologist Dan Gilbert suggests that we have a hard time imagining how much we’ll change in the future.

So it makes sense that Choi says, “It’s near impossible to plan where you’ll be a few years from now.”

Choi uses his own trajectory as an example. During college he studied engineering, and he never imagined he’d move to rural Eastern Europe to harvest corn afterward — but he did. While living in Europe, he never thought he’d later move to a fancy building in New York City — but that’s exactly what happened.

Expect to be surprised (hopefully pleasantly) by the way your life unfolds.

Flickr CC/Morgan

14. How to be patient

There’s no question that it’s important to be ambitious and to work hard to achieve your goals — whether they include landing a spot in the C-suite or buying a house.

But try not to get frustrated if, at 25, you still haven’t scored a promotion or saved up enough for a down payment.

Take a tip from Steve Kobrin: “Good things simply do not happen overnight. They take time to nurture and cultivate. They take a lot of work. A lot of thought. A lot of trial and error, and learning from your mistakes.”