In regards to the British accent... beign "Up North" here, the accent is rather diabolical. It's a cross of english, geordie and scottish vernacular. So, even amongst her peers, Caroline and her family sound different (except her dad who's from Sheffield). I don't expect to gain an accent in only a few weeks; but when we used to go for a month at a time I'd be talking right peculiar by the time we returned home. Not an accent as much as the odd inflection and emphasis.
We all end up imitating the sounds around us, wether we realized it or not. It's how toddlers learn to speak, recreating the sounds they hear and applying meaning. It's hard to be in a foreign country and not pick some of it up.
However, I still get a lot of stick here. You don't catch the "bus" as we'd say, but the "boose". We'd say "I've been (pronounced "ben") downtown" whereas they'd say "bean" downtown. I'm a barbarian, what can I say?
New Year's Eve tonight. We don't have tickets to go out, but will be acquiring lager, cider and cava later on.