[Maxful]

Thanks supperman san. What about "そうか (I see)" and "なるほど (I see)"?　

Also, I have been using "どうも" whenever I am thanking my classmates, but I have also heard many times in Dorama that the actors actually say "どうも" when saying "Hello". So I was wondering if "どうも" is also a casual way of saying "こんにちは"?