Some similar phrases in spanish are:
¿Cómo va? (how are you going, i.e. how are things going)
¿Qué tal? (what such? or how's it going, used similarly to "what's up?")
To say 'I am going to rest' in Spanish, you would say 'Voy a descansar.'
To say 'I am going to read' in Spanish, you would say 'Voy a leer.'
To say 'I am going to run' in Spanish, you would say "Voy a correr.'
To say 'I am going to school' in Spanish, you would say 'Voy a la escuela.'
To say 'I am going to school' in Spanish, you would say 'Voy a la escuela.'
To say 'I am going to the room' in Spanish, you would say "Voy al cuarto.'
To say 'I am going to talk' you would say 'Voy a hablar.'
voy
Yendo
To say 'He is going to the bathroom' you would say 'Va al baño.'
You can say "Vas a perder."
voy a cantar