When cheering, have you ever heard of someone shouting out, "¡Arriba, abajo, al centro, pa' dentro!"? Here's a step-by-step guide to perfect this cheer.
This means "up." You start with raising your glass up.
This means "down." You then follow the raising of glass to bringing it down.
3) Al Centro
This means "center." You then bring you glass to meet with everyone else's in the center.
4) Pa' Dentro
This means in or "inside." You then take a drink out of your glass.