Russ, currently in mexico. no worries about going in. they welcome americans, even if u look different its okay. remember your going into mexico, not the states, they definatly will give u more trouble. but u have to pay a tax of like 25 or 30 dollars upon entry. its just a tax for being american. and my advice is get a ride before you cross just because it can be dangerous, not necessarily with the cops and border patrol but other people. i crossed over from brownsville, louisana to monterrray. i caught a ride from new orleans that my friend actually found for me by craigslist. but before that i had planned on hitching too. now i have been here 4 months and have had to do quite a bit of hitching because im traveling with my dog, and dogs are not allowed on the buses here. but let me tell u the buses are super cheap and go really far and are so easy to find. even just standing on the hiways u can flag down a second or third class bus and if it has room it will stop. on 30 dollars u can go 1000 kilometers.
also find a ride to take u past all the border towns. u will be better off. and lots of americans traveling alone may want the security of another passenger. what exactly are u hoping to do, or where do u want to go. i can give more info if u want. i came not knowing anything at all, but in my time of traveling have learned a little more and would be happy to share with u to help make your journey easier or feel better. mexico is completely opposite of the u.s. i have mostly a postive view of mexico, but it all depends on where u are going. im sure u know that u will need a passport though. okay i said alot, good luck.
