1 I would like to suggest: 'Where shall we go tonight?' 'How about the cinema?'
az: nə deyirsən
ru: как насчёт ...
2 what is he, are you etc going to do?; what does he, do you etc think?: We're going to the cinema tonight: How about you?; I rather like that picture. How about you?
az: siz nə deyirsiz?
ru: а вы (вам) ...?