I would say यो तपाईमा भर पर्छ । for It depends on you. तपाई निर्णय गर्नुहोस् । for you decide. Interestingly enough, say can also mean chose/decide as in this sentence: तिमी भन ल, आज के खाने ।

In simple sentence you can just say"tapai ko marjee" for example you visit nepal n staying in the house of a nepali friend n in night he ask you what would u like to eat in dinner chicken or motton? U can simply say tapai ko marjee which means whatever u wish

Will you also write answers in English Nepali rather than Devanagari script? I can't read it yet and for me it is less important to learn the script rather than the words I am supposed to say.