Not Afraid of Strangers

I noticed with our DD that she is not shy at all with strangers. Every time somebody will talk to her or play with her she will bubble and respond to them. I noticed this all the time we are inside a store. We were at Best Buy and this lady was chatting with her and she just keep on bubbling and laughing with the lady. Yesterday we were checking out at the Commissary and the cashier said hi to her and she replied "ay" and a giggle. The cashier told me saying "oh your baby just said hi to me". I really thought that she is shy with other people since she is not used to having a lot of people around her. It's a good thing that she is sociable now and I hope it will not change. I want her to be a happy baby at all times.