This is similar to Do you remember what happened during Dominate Person? (Pathfinder, not D&D 5e), but the difference is I'm not issuing any order to target.
Will the target remember that they were dominated?
This is similar to Do you remember what happened during Dominate Person? (Pathfinder, not D&D 5e), but the difference is I'm not issuing any order to target.
Will the target remember that they were dominated?
PHB p 204
Unless a spell has a perceptible effect, a creature might not know it was targeted by a spell at all. An effect like crackling lightning is obvious, but a more subtle effect, such as an attempt to read a creature’s thoughts, typically goes unnoticed, unless a spell says otherwise.
Dominate Person does not “say otherwise” so, irrespective of if you issue commands or not the creature doesn’t necessarily know it is (or was) dominated. Compare this with Friends where the creature knows it was affected after the spell expires - Dominate Person has no equivalent language.
An intelligent creature may be able to guess why it is behaving strangely but it wouldn’t know for sure.