I used to think we were an indecisive people, but now i am not so sure :)

We Brits are famous for the "stiff upper lip". It means during hard times, we but on a brave face and don't cry or get emotional. Also, I think British people are generally more reserved and don't say everything that's on their mind. British people are also quite well-known for their sarcastic and very dry sense of humour.

Regarding "stiff upper lip" and being reserved...a bit of alcohol causes an overflow of emotions, which had been bottled up inside for ages!

Well I think they are a serious people but intelligent Iam not sure because I'm Mexican but all people are special only enjoy the life and smile :D