Hey gang, quick question for spells like Command, Suggestion, Dominate Person, etc..

Hypothetical scenario; a guard is guarding a locked door. The guard doesn't have a key for the door, nor do they know where the key is. The party comes along, and wants to go through the door. They use some sort of enchantment spell on the guard and order them to open the door.

What does the guard do? 

I’d have him turn around and knock on the door and say “There’s five new friends I have out here who want to come in, can you open up.”

Quote from TwisTurtle >>

Hey gang, quick question for spells like Command, Suggestion, Dominate Person, etc..

Hypothetical scenario; a guard is guarding a locked door. The guard doesn't have a key for the door, nor do they know where the key is. The party comes along, and wants to go through the door. They use some sort of enchantment spell on the guard and order them to open the door.

What does the guard do? 

Depends on the spell. For some examples:

• Charm Person: he'll tell the party that he doesn't know how to open the door (it's not a command effect, it just causes you to be interpreted as a friendly acquaintance). He might give them information about who can open the door.
• Command: I'm not sure what one word command you could use ('Open'?), but he'll spend his action attempting to open the door, possibly making a strength check.
• Suggestion: he'll try to open the door to the best of this ability. This may means he tries to contact someone who will open the door, unless you're pretty careful with wording.
• Dominate Person: he'll attempt to open it in whatever way the dominator tells him to open it.