When can I feel my baby kick outside?

I'm 19 weeks and I just barely started feeling the baby kick a couple days ago. When will other people start to see and feel the baby? Also the baby only kicks once or twice a day. When will I feel the baby more regularly? It doesn't seem to matter if I have a gl of oj or have just eaten. And sorry- 1 more question- I only feel the baby kick in one place, is this normal? Shouldn't the baby be moving around more?