What are the basics steps in folk dance example waltz cross waltz and the like?

Answer:

Generally speaking there are only 3 steps at any waltz: 1-Step, 2-Different Step, 3-Close step.

For example in a ballroom dance the classical waltz like dancing by a circular itinerary the man begins with his right step (step 1) after this he makes a step to the left and diagonal turning the couple almost 90 degrees (step 2) and after this he brings his right leg next to the left one by another turning of almost 90 degrees (step 3)

Practically you begin with your legs standing next each other and:
1 - You move away one leg
2 - You pivot on that leg to turn your position
3 - You bring the other leg to the one that stands on place when you pivot.

For example:
1 - You move your left leg to the left
2 - Standing on your left leg you turn 180 degrees
3 - You bring your right leg near the left leg that standed.