I'm sorry if this offence anyone, but this is just stuff I've noticed through my friends, so this is more of a description for my friends.
Aries: wants to do every thing fast and good, so they sometimes don't think before they do stuff. Likes to get in on the action. Aries don't like to get too much time sitting down, for them, exercise is almost the most important thing in life, so you might want to stay out of the way when they want to exercise. Aries are also quite protective, they will keep you from getting hurt at a pretty high cost.
Libra: freedom and fairness is everything, do things fair, that's what they want, honestly, sometimes can be extremely stubborn because they like to do what they want, some gets mad so easily because they feel that no one ever listens, they are careful when they're calm, but once they get frustrated, don't stand in the way, they get very nasty sometimes.
Aquarius: Careful does it, they usually don't rush, would always do their full share and do them good. Usually quiet and neutral, but you really don't want to see them when they aren't in a good mood. Aquarius would usually hurt you more with their tongue rather than a fist, most of them are generally pretty smart and comes up with a comeback in matter of seconds. Aquarius people remembers, they never forget their lovers, so if you decide to love one, make sure you never leave them.
Scorpio: seems cold but is actually really nice, they are very careful and thoughtful of things. Scorpio don't rush, Sometimes Scorpio would be like Aries's side kick but Scorpio keeps to themselves mostly. Scorpio would most likely start annoying you or start hurting you once you hit that limit you shouldn't break, it will be pretty obvious you hurt them though.
Gemini: Mind runs at a 0 to 150 km in three seconds, their minds jumps from one topic to the other extremely fast. You really wouldn't understand them that well unless you are another Gemini. If they don't fight and suddenly shuts up, it means they're upset or angry but just really don't want to hurt you.(I'm just writing myself and my friend here, cause we're both Gemini and this really sums us up)
Virgo: Rather shy, like Scorpio, they keep to themselves, but once you get along, you can talk on for hours on end. Probably the most romantic one out of all the zodiacs. Virgo do get angry and upset, even if they don't say anything, so you have to watch for the clues.
Cancer: Don't talk much, always seems to be working, although there's no guarantee that the work will be finish good or fast, they would always finish, Cancer likes quiet times to be quiet times, they really sort out what they should be doing, and what they shouldn't be. Once a Cancer gets angry, you better run, cause they can cause some serious injuries sometimes.
Leo: Very excited to meet new people, they rush quite often compare to some others, so sometimes ending up with a bad quality work but finish quick. Leo certainly lights up your world better than most other zodiacs, because they get along with everyone easily. Most Leos are rather forgetful so you might end up with a nasty surprise if you tell them to do something, don't mess with Leo, you will get clawed and bitten with likes of a lion.
Capricorn: pickier than most, good friends, honestly they are really nice people as long as you don't mind them being slightly bossier than others too, love to talk for a long period of time, sometimes they will be a little ignorant. Capricorns don't like to work much, they would like to avoid work as much as possible, they have much higher standard than most, so it might be hard to get in contact with them.
Taurus: silent workers, they don't really complain, they just do their work without, letting their annoyance show, Taurus are rather humble people, they don't say much either, they would always just take in everything without a word, you need to keep an eye on them because they will not tell you what's wrong, so if you want to show that you care, go talk to them yourself.
Sagittarius: Lovable if you like sportive people, or people with optimism, it's just something they have and can't leave. Sagittarius loves to do experiments too, some might even be philosophical. Sagittarius don't like work but they finish them, they might want to leave the work too, but as long as you keep them on track, they'll finish their work, don't mess with an angry Sagittarius, like Leo, they would most likely end up hurting you.
Pisces: Pisces are people that seeks freedom and fun, they will do anything that they find is enjoyable, that includes work, so if you want a Pisces to help you, keep in mind the best way to convince them is if you make it sound fun and quick, Pisces can loose interest in things quickly. Pisces wouldn't mind being with anyone in general, so it's nice to have that one friend that can somehow always make up games to keep you from getting bored.