The glass on that side of his helmet was fogged.

Felt Tiberius's hands on the sides of his own helmet.

Trip tapped on the side of his helmet- can't hear you.

But Maelcum could only tap the side of his helmet.

Use the tongue switch on the left side of your helmet and press down.

And he slapped his hand against the side of Kent's helmet.

He touched a switch on the side of his helmet.

Harris looked around once more, then punched the side of his helmet.

She squeezed the boy and thumped the side of his helmet.

He touched the side of his helmet and spoke softly.