To become a citizen of a foreign country, you just need to obtain a visa, which can be either a non-immigrant visa which is for temporary stay, or an immigrant visa which is for permanent residency. The persons who have non-immigrant visas and visit a foreign country for business purposes (visa category B-1), for the tour (visa category B-2), or both (B-1/B-2) are termed as Visitors Visa.
With the aid of Visitor Visa, you can visit any foreign country either for business purposes or for a tour which includes vacations, recreation, meeting friends or family. Business purposes can be negotiation, business visits, or conferences. A visitor visa doesn’t permit you to either purchase or sell products or services to other businesses or customers. Individuals having training or doing studies are also eligible for a Visitor visa.