Step out

She opened the car door and stepped out of the car.

They've been stepping out since he told her he was interested in a family.

[…] they had marched past Poincaré at Peterhof, the Grand Duke Nikolai Nikolaevich stepping it out on the right flank with his perfect martial bearing and an air of desperate bravery about him, saluting and giving this honored guest eyes right.

"Look here, Bunter, step out," exclaimed Harry Wharton, impatiently. "Do you want lines from Quelch, you fat chump?" Billy Bunter did not step out. He remained where he was, and jerked a fat thumb up the woodland footpath.