Natalia blinked at the compliment but otherwise it didn't phase her. The trick was to be natural and Bruce was doing a decent job of that. She lead the way, more or less, giving a slight tug on his finger when they had to turn. HYDRA agents were heading right for them and Natalia knew that this area wasn't necessarily common for the "help" to be. Which they were, more or less. Entertainment, yes, but still, there because there was a paycheck involved, supposedly.
"Kiss me," she turned to him, "Preferably within the next few seconds." Natalia leaned into his arm and took his hand into hers, slipping it onto her waist to bring them closer together. Then she lovingly placed her head on his shoulder as she drew them to a stop, turning him to face her as her arms slipped over his shoulders. The figures were walking closer, she didn't want them to see her own face, but especially not Banner's.
Blue eyes looked directly into Bruce's, bringing her mouth closer to his, she whispered, "Kiss me now." Though she didn't necessarily wait for him to do his part. Natalia closed the space between their mouths and kissed Bruce passionately. The lounge singer and the piano man kissing in the hallway, surely that wasn't supposed going to look so strange.