|A loose English translation of bismillah with my main idea of God drawn out|
I don't think it's essential for a Muslim to throw in all sorts of Arabic in their day to day talk... But I do think it's recommended to use certain islamic phrases or at least have their meaning in the back of our heads.
With a lot of time I've started to develop the habit of using some of them, mostly while writing since we write slower than we speak and I've started to think them when I'm speaking to people.
Masha'Allah is my most automatic lately especially when I see a baby and compliment it (though it could be when I compliment anything) and I have also started thinking alhamdulilah when someone or I sneeze. I also feel the need to greet people with salam and I do especially in written form.
Hopefully with time I'll be using these out loud and I will be able to incorporate the two most important ones, insha'Allah and bismillah... There's some work to be done but I do have a bit of progress with insha'Allah though it's definitely not an automatic yet.