Signs Sitting In A Boring Class.

Phone under the table:
Leo, Gemini, Scorpio.

Fell asleep:
Cancer, Taurus, Pisces.

Aimlessly turning a pencil in hand:
Capricorn, Aquarius, Libra, Virgo.

Creating a plan on what to do if teacher turns in to Voldemort:
Sagittarius, Aries.

... 😶