Relationship Woes and Advice, Trip to Baator

[Froogleyboy]

Okay, there is this girl, and she said British guys are "sexy" and, of course, I want to seem British now around her (that sounds kinda racist when you think about it) So, I want to know some British slang that people ACTUALLY USE
so . . . hit me with your best shot
This thread just makes me look like an ass