On my arrival to United States of America, I went out to the T-Mobile store to go get a sim with my wifey and after getting it done... Firstly, I was asking wifey for the code to check my balance without knowing that is done postpaid. and the second one was avoiding every of her American friend because I don't want to engage in any kind of conversation with them since I don't hear them when they talk... share yours please.