Hi Charlie.
Izvinete. I think ako obichate translates as 'if you like'. Blagodaria or merci is used for please. I can understand some of the language, our friends try to teach us but I am not fluent.
zdraytey,zdray,hello zdrasti hi , morlia= your welcome ,dont mention it,and please! mersi and blagodaria is thanks, chao and dovisdiney is bye! kak ste, kak si is how are you
ne ako obi4ate means= please but very few people use it! but then again bulgarians dont really say please. and thats true! dobre 4ao leti6ito e tyk im off to borovets now