Yes if in the UK always wear a suit. Even if you didn't have to no-one is going to think ill of you for it. It's just standard here. Looks like if you're in th

Yes if in the UK always wear a suit. Even if you didn't have to no-one is going to think ill of you for it. It's just standard here. Looks like if you're in the US, though, you're going to have to be careful to find out first what the code is.