Alerts And Emotes

Alerts and Emotes allow you to communicate with your teammates, when you don't have voice chat enabled (and even when you do).

Alerts
Alerts highlight a part of the map that needs attention. It also plays a sound to alert your teammates.

The are four things you can trigger an alert for: All alerts are triggered by: Hold L2 + Alert Button, where alert button is the thing you wish to trigger.
 * Gates
 * Snail
 * Blue Base
 * Gold Base

On Nintendo Switch, the alert combinations are:

Emotes
Emotes put an emoji-like symbol above your player's head, accompanied by a corresponding sound.

The four emotes are: All emotes are triggered by: Hold R2 + Alert Button, where emote button is the thing you wish to trigger.
 * Heart
 * Anger
 * Taunt (laugh)
 * Confusion (question)

On Nintendo Switch, the alert combinations are: