Why isn't my keyboard popping up - Lenovo K3 note?

[AC Question]

I just received my 2nd Lenovo K3 note , and surprisingly I dot see keyboard pooping up. I just opened the package , switched on the phone ...while setup it asks to connect to Wifi, and when I select , keyboard is not popping up for me to enter password. I had then setup the phone without connecting to WiFi. but still I have no keyboard popping up.
My phone is running android 5.0 Lollipop.