aap kaise hain? - Respectfully (when talking to elders) tum kaise ho? - Friendly =)

How are you? = āp kaise (male)/kaisī (female) hai? = आप कैसे/कैसी हैं?

how(kese) are(hai) you(*) [*"aap" for elders and respected ones "tum" for respect and used with your younger ones and friend] aap and tum works for both gender u can also use "tu" then how ="kesi" for female and "kesa" for male... and in hindi subject comes first... like.... "aap kese h" not "kese h aap"... however both makes sense...