Reply Software Engineer interview questions

Initially began with submitting a CV and covering letter. Once reviewed I had a brief phone interview with a woman from HR who was very nice, making it more of a conversation than a strict interview. This was partly quizzing me on my CV, experience, motivation, what i knew about the company but I think was mainly to gauge the quality of my communication skills. Following this I was invited to a face to face interview in London. The interviewer firstly gave me some forms to fill in and left the room for 10 mins. The form asked for information about projects you have worked on and what technologies I used. After this there were a number of generic interview questions and further quizzing about things on my CV. Lastly, I was then asked to get up and teach the HR lady something technical of my choosing.