How to attract a foreign investor?

With foreign investors are more difficult to communicate from Russia. If it is really necessary — I would recommend to apply for any international project competition — this way it's easier to find interested parties. Just do not understand — the Russian funds not pleased? Most of them work under the English law (not registered in Russia), and this provides some legal security.

Not the fact that a foreign investor better. Experience: detain for soliciting detail and often just throw. I would advise at Startuppoint to place the project and to involve the mentor in 5%.
Mentor I think will attract investra more efficiently and without loss.

what about neighboring countries?

Preference is given to companies or people from the United States.

The sites of these investors, in the US they abound. Look in Google by words "angel investor".

Other languages you know? The project is really so cool? Then the problem is not so much — surf and offer.
Alternatively, go to the extras type Riva.

One of the ways of attracting investments, especially convenient when working with foreign investors is a special "investment boutiques" who act as intermediaries. They work on a something resembling a realtor: in case of successful attraction take a small percentage. In addition, they are able to do if not themselves, then at least explain how you need to prepare documentation, plan, investment Memorandum and other papers in order to liked to the investor.
To them, however, little sense to apply for small volumes of investment — they are not very interested. It is also necessary to consider that they work more with investment funds, not private investors, and these relationships have their own specifics. However, a link to one of them (Beford Investments) I threw, see if You can help.