Been in the UK for a long time now having previously been in the US.

Notes:

Cold approach in general is much harder. People think it's odd to spark up conversations with strangers. This makes reaching the hook point and NOT getting instantly rejected extremely difficult

Day game:

With the above in mind, expect some strange reactions from girls if you are hitting on them in the day! (especially if you are like outside of say, London!). It is completely out of most peoples reality whereas in teh US, it really doesn't seem that unusual to most girls. They'll tend to talk back in the US (although that can have it's own problems as you mistake politeness for sexual interest!). I'd advise lots of statements of empathy ''I know this is super weird....'' kind of thing. Worth trying if you are in Central London though. Tourists are the girls who will be receptive, though. Not many locals

Nightgame:

Best way to cold approach in my eyes. Difference between the US and the UK in terms of nightgame is that there's way less competition in the UK. Being AMOGGED by a random dude basically doesn't exist like it does in the US. Nobody approaches and a random guy will almost never jump into your set like happens in the US! Other thing is that even though girls will tend to still be WAY more hostile and unapproachable compared to US girls, AT LEAST they are kind of expecting it and it's not seen as super weird like how a daygame approach might. It's a social setting. They'll be kind of dismissive and even rude if you aren't their physical type, but they generally won't think of the act of you approaching her as unusual/weird like they generally would in the day.

Having money means nothing in UK clubs to girls vs US girls, either! There's not really table service and stuff in most UK clubs. Even if you are in the VIP area, it really doesn't buy you any interest from girls in the same way that it does in the US. It's so weird how this is so different! In fact, money in general only really impresses the older girls who i'm not interested in. The young hot ones don't seem to care. If they think you're hot, they'll bang you even if you are borderline homeless lol. The hot girls also don't get to line jump or get in free like in the US. So many differences that probably effect things more than we realize

Get as handsome as you can and play the numbers game. If she's receptive, escalate. If she's not, it's likely that you aren't her phsyical type and you aren't gonna be able to convince her to want you no matter what you say (game). Move on

Online dating -

strangely, there is much less of a 'dating culture' in the UK! I had a friend tell me this years ago but I didn't believe him. Then I watched a UK show called 'peep show' and the main character said something like ''Go on a date?? We're not American, for Christ's sake!!!'' and it made me realize he might not be kidding, lol. I personally think online dating here is a fools errand unless you are lucky enough to be very handsome. The best looking guys just bang all the girls and the other guys go without. Why would she choose a 6 when she can have the 9? All she has to go by is his face/body, really. I'd say the US has more of a 'hookup culture''. US Girls just 'date around' much much more than UK girls. They're much more socially confident in general, too. UK girls will more likely hookup with guys they know or maybe go home for a one night stand with someone as opposed to actively dating random dudes she meets online or IRL

Social circle:

The king!!! I wish i'd known this sooner. It's basically everything. This is how UK guys punch out of their league. You will almost never see an ugly guy pickup a really hot girl from day game, night game, or Online dating here, but you WILL see him bang his beautiful work colleague or his gorgeous college friend etc!! And in bars, people just tend to stick together in their group/social circle which bumps you up the list if she's remotely attracted to you, even if there's a better looking dude she doesn't know who's playing pool in the corner. Getting laid with hot girls without being around tonnes of them and knowing them well is pretty rough here!

Also, age gaps are less of a deal here. I was drinking in bar last night and the BEAUTIFUL bar girl was dating a nerdy looking male who was like a 6 at a push? She was 18. he was 30. And they'd be dating for like 3 years! And it just isn't much of a big deal. I have friends with similar age gaps. In the US, this doesn't seem to really happen. Also, age of consent is only 16 here and there's no 'age gap' laws like in lots of the US. So here, you can legally be in your 60's(+) and have sex with a 16 year old. And this seems to happen (especially in 'chav' areas) more than you'd think! (girls from very broken homes with daddy issues etc, I guess)