How can I go to USA?

Where are you from?  You might need to get a travel visa, it depends on where you're from.  What are you afraid is stopping you from traveling to the US?

Check the US embassy site  in your area for information.  Here is a list of countries which don't need to apply for a visa.

Good Luck. 

hi. it depends where you're coming from because there are some countries that the US government requires a visa to get in. there are also different types of visas depending on the purpose of your visit.

if you do need to get a visa, any will travel agency should be able to help you with the process of obtaining a visa to visit in the US.

there are no way to go