- You don't need much sleep.

You are not tired and you don't go to bed at your normal time. Maybe you stay up and extra 2-3 hours. Then you go to bed. You sleep, but you wake up early. You don't feel tired or like you need more sleep.

- You're more talkative than usual or feel pressure to keep talking.

You just start talking about nothing in particular. You keep talking, you can't stop. You jump from topic to topic. The person your talking to can't get a word in edgewise. If they do start talking, you are very likely to interrupt them. Everything reminds you of something you need to say. This is called pressured speach.

(Also in a forum, you type and type and are frustrated when there are no posts to reply to. Word walls are often created by this, I call it "pressured typing.")

- You experiece a flight of ideas or feel your thoughts are racing.

One idea leads into the next. They move very fast. Sometimes it is so fast you can't keep up. You have so many ideas at once they seem to crowd your mind. All of your ideas seem brilliant. You may try to act on some of them, but they become unfinished projects.

-You are easily distracted.

If you are interrupted in doing something, you forget what you were doing before and might not get back to it. You might suddenly remember you wanted to look up something, call someone, or do something in the middle of a project and then stop to do what you just remembered. It's hard to read a long post, article, or book.

- You are driven toward accomplishing specific goals (either socially - at work or school - or sexually) or you are experiencing psychomotor agitation. -- (By the way, what is Psychomotor Agitation?)

Tapping, fidgeting, pacing, rocking, twriling your hair, clicking a pen. Psychomotor agitation is any type of movement you make because you're feeling mentally distressed in some way. Holding still feels impossible. Like your full of lightning and if you don't move around it will explode out of your skin.

I pace around and around and talk to myself. I also rock and fidget a lot.

- You have grandiose thinking.

You are suddenly overly confident but this over confidance feels completely logical and well thought out. You feel super amazing and powerful. "I'm a genius. I'm amazing. Nothing can stop me." This can drive you to take on way too many goals and then it falls away once depression hits, causing you to fail at the goals you set.

"I'm going to write 7 novels and a blockbuster movie screenplay and win a Hugo award by teh time I'm 18 years old!" (Example of mine)

- You've become excessively involved with pleasurable activities that have a high potential for painful consequences, such as unrestrained buying sprees, sexual indiscretions or foolish business investments.

This is also known as "risk taking" behavior. Some people gamble, shop, have promiscuous sex etc without caring about the consequences during hypomania. It is a damaging venture such as you spend way more than you should, running up multiple credit cards, then can't pay the bills because it's far beyond your means. You can have something as major as you buy a ton of shoes and leave no money for rent or food. This really varies for everyone.