Postby community.japanese » June 2nd, 2014 3:51 am
amai san,
I know you want to talk with your Japanese friends friendly however, it is hard to answer the question a bit.
It is hard for even native Japanese speakers to know the right timing to change polite form to casual from. The reason why is that you have to consider everything around you for example, relationships among people, place, time, age and so on….
If you can speak Japanese fluently, Japanese people expect you to be able to understand the Japanese culture, too. However, when you appropriately can’t change speaking casually to speaking politely, their impression of you would be worse.
I think that your friends think you speak to them too formally, they would tell you about it.
That is the timing you can change your speaking formality level.
I think being polite is better than being rude so I recommend you to wait until they say so.
Yuki 由紀
Team JapanesePod101.com