Answer:
1) It's illogical to think that something is good value just because it's inexpensive.
2) if you disapprove of the way someone behaves because they are always talking senseless you should tell them
3) be careful with gestures and other non-verbal responses if you are unfamiliar with the local culture
4) giving away your password was the most irresponsible thing you've ever done, but I guess it's irrelevant now you have changed it.
hopefully now tgats better