Monica Shiralkar wrote:something technical
That's not what you were asked:
"Tell me something about yourself".
If you really want to lean towards your technical proficiency, you could try to divert the chat in some way, i.e.:
"During my free time I spend a lot of time working on my personal projects where I had a change to learn some cool technologies..."
But you don't need to rush things as most likely you will be asked anyway to tell more about the things you do in your current work/role, or what you have learned during your studies or so.