Go into all the world and preach the good news to all creation

Mark:16:9-19
Mary Magdalane went an told those who had been with him and who were mourning an weeping. When they heard that Jesus was alive and that she had seen him, they did not believe it.
Later Jesus appeared to the Eleven as they were eating; he rebuked them for their lack of faith and their stubborn refusal to believe those who had seen him after he had risen.
"Go into all the world and preach the good news to all creation. " Jesus said to them.
Whoever believes and is baptized will be save, but who ever does not believe will be condemned.
These signs will accompany those who believe: 1)drive out demons; 2)speak in new tongues; 3)pick up snakes with their hands; 4)drink deadly poison, it will not hurt them; 5)place their hands on sick people, and they will get will.
Why?
Most people heard Jesus raise from death did not believe in it. His disciples heard Jesus mentioned these many times still did not believe. For the mind of human does not be shined by Holy Spirit.
Two different destiny, one is be save who believe and other be condemned who does not believe Jesus.
Jesus admitted that when we preach gospel to others and follow his commands we will have signs accompany with us.
How?
Preach good new to the people around us.