Sakura and Shirou
The couple's fake smiles gradually became more genuine as the girl continued to eat, seemingly having gotten over whatever it was that made her unhappy. They, too, continued to eat their ice-cream, Sakura waiting for Moko to return to her lap so he could finish his food.
Their smiles vanished, though, as the girl asked her question. The two of them both knew that bounty hunters were not well-regarded, due to their often very self-centred nature.
"Erm..., we're bounty hunters", Sakura responded, somewhat sheepishly.
"But we only take bounties on people who deserve it", Shirou added, giving a kind smile. "People we'd want to stop even if we weren't being paid."
Rider
Not expecting an attack, Rider was not really paying as much attention to her surroundings as she perhaps should, allowing what she assumed was another servant to get far closer to her than he should have been able to. Nevertheless, even with her limited focus, she was still fast enough to easily avoid the oncoming man, jumping to the side and landing on a rooftop.
Not wanting to lose her rather impressive collection of sex toys and torture implements, which she would hopefully need for her next date with Emily, Rider placed the bag down in a safe place on the rooftop before transforming into her battle outfit and, then, jumping slightly backwards towards where she had originally come from.
"Who are you and why are you chasing me?" she asked, tensing up but not yet summoning her weapons.