standing at the streeet and want to cross the road ,
first ,you should catch a sight of your left and right.
seecond,make sure there is no car in your sight,then you can start to go your first step ,during this time you also need to look around the street to judge whether cars coming .
thirld,if a car come in your sight ,you should stop and wait the car pass the road .then go on you step till you cross the street.
forth,if the street has the traffic light,you should obey the traffic rules!