1) get map
2) look at map
3) stand at roadside figured out from map
4) stick out thumb
5) realize you read map wrong, have driver drop you off and cross the road to opposite side.
6) begin again at step 1
Good luck.
No offense, but you're being very vague. Do you have specific questions about a route or gear?...or are you just looking to be spoonfed information?
Dress like the kind of person who you want to pick you up, if possible - if you're out in redneck country, stow the spiked jacket and smooth down the mohawk; if you're on your way to a festival, dress like a festival person; etc