Gryffindor: One-armed hug, fist bumps and a special greeting for each friend; claps you on the shoulder.

Ravenclaw: Barely-there hugs and small waves; always confused and awkward when meeting with new people.

Hufflepuff: Warm, long and strong hugs that leave you breathless; rubs or pats your back.

Slytherin: Polite hand shaking, silent nods.