How do you find the pH of a 0.1M NaOH and a 0.1 M HCl solution?

So there is 10.0 mL of 0.1 M HCl in a beaker. 0.1 M NaOH is added in 0.5mL increments to the HCl. What are the first three values? (0mL of NaOH, 0.5 mL of NaOH, and 1.0ml of NaOH) and how do you find the rest of the values?