I dunno, I just wanted to randomly appreciate that Roger looks like he watched a bunch of 1940′s spy movies before he left for the Synchro Dimension and decided that this is the way an infiltrator is supposed to dress based on those. Like dude, you’re supposed to be making yourself look less suspicious, not more. ^^;
Worth noting that Crunchyroll sorta assumed more than they should have with this line. Ai’s originally saying “omae, kou iu no ni kyoumi atta'n da” or “So, you like doing things like this?” Which honestly, could be about either staking out trying to find Aoi (to tie back to his not wanting to stick out since, well, he could feel like he’s sticking out by sitting out there trying to find her) or, yeah, picking up girls, but the latter’s not explicitly stated.