How to target an established .co.uk site/blog to audiences in other English speaking countries - UAE, Singapore for example?

[twofourseven]

Excuse for the novice questions, but looking for help!

I have an established .co.uk website/blog for which I have established a good solid following in the UK over a good number of years. That said I have recently relocated to Dubai and so I am looking to target my English blog content to English speakers here and Singapore?

While the language setting of my site is "en" is there anyway that I can change this to "en-ae" and "en-sg" for example to build a following in these markets? Or is my .co.uk TLD an issue that is going to hold me back from building following in these locations?

I ask as I have just read the hreflang announcement from Google, but noticed in my Webmaster Tools that I get the following message: "Your site has no hreflang tags".

Thanks in advance!

[Er_Maqui]

You're viewing this information probably because you doesn't have defined your lang in the html tag.

And, also, you can change the lang of the page reading the lang of the client. But this doesn't have any effect on SEO.

I think, if you want to be crawled for all the world, you need to get another domain (Neutral one, as .com for example), and redirect all visits who doesn't have user-lang en-uk to these domain. You will mantain your actual score and start to make a new one too.

Google normally gives some priority on local market to local domains.