adventure
alone
auto
automobile
autostop
boy
car
catch
country
driver
driving
finger
free
freedom
gesture
get
guy
hand
highway
hiker
hitch
hitchhiker
journey
lift
male
man
nomad
outdoor
passenger
people
person
ride
road
roadside
route
stop
thumb
tourism
tourist
traffic
transport
travel
traveler
trip
up
vacation
vehicle
way
wheel
young