In a classroom: 

Aries: The one who gets detention.

Taurus: The one who corrects the teacher.

Gemini: The popular one.

Cancer: The one texting their boyfriend.

Leo: The one who is constantly/fixing their hair.

Virgo: The one taking notes.

Libra: The one who flirts with the teacher.

Scorpio: The one with secrets, that's why their hair is so big.

Sagittarius: The one watching the clock.

Capricorn: the one with the never ending supply of stationary. 

Aquarius: The one staring out the window.

Pisces: The one who shares their answers to everyone.