Some hints and after work drinks in Beijing

Hello there, I just moved from Zurich to Beijing...that means, such a huge cultural shock for sure...being a Brazilian from Sao Paulo I got to say Beijing somehow reminds me home...the company I work for helped a lot with the visa procedure and house hunting...as of now, I'm settled down, what I really miss at the moment is having an after work drink with friends ! I am also eager to learn Chinese...any recommendation about language courses is very welcome ! thanks in advance,cheers, Andre