The head armor in Mass Effect: Andromeda is amazing, but there are times you might prefer to see your character's face. When this happens you can do the following.
Head into the settings menu before selecting the Gameplay tab. From here there is a setting for "Ryder's Helmet", which allows you to toggle the main character's helmet.
Note that there are three selectable options, one of which allows the helmet to only be hidden during cutscenes. Nice touch, BioWare!
Check Out More Mass Effect: Andromeda Coverage:

Embark on an inspiring mission of human connection beyond the UCA. Sam — with companions by his side — sets out on a new journey to save humanity from extinction. Join them as they traverse a world beset by otherworldly enemies, obstacles and a haunting question: should we have connected?