Speech

To have an NPC say a message to the player, call SpeakToPlayer from an EVT script:

Call(SpeakToPlayer, NPC_SELF, ANIM_Luigi_Talk, ANIM_Luigi_Idle, 0, MSG_CH0_0103)

The NPC turns to face the player, and the EVT script waits until the message closes.

These calls show messages in other ways:

Call	What it does
SpeakToNpc	Like SpeakToPlayer, but to another NPC
ShowMessageAtScreenPos	Shows a message that no one speaks, such as a sign, at a point on the screen
ShowMessageAtWorldPos	Shows a message that no one speaks at a point in the world

Keeping the box open

To do something between two messages without closing the box, end the first with [Yield][End] instead of [Wait][End]. The EVT script carries on while the box stays open. Then show the next message in the same box with ContinueSpeech, or close the box with EndSpeech:

Call(SpeakToPlayer, NPC_SELF, ANIM_Goombaria_Talk, ANIM_Goombaria_Idle, 0, MSG_CH0_0098)
// ...
Call(ContinueSpeech, NPC_SELF, ANIM_Goombaria_Talk, ANIM_Goombaria_Idle, 0, MSG_CH0_009A)

A message that continues the box starts with [Next].