Formal:
* چه کار میکنید؟ (Che kār mikonid?) - This is the most formal way to ask. It's appropriate for addressing someone older than you or someone you don't know well.
Informal:
* چی کار میکنی؟ (Chi kār mikoni?) - This is a more casual way to ask, used with friends or family.
* داري چي کار میکنی؟ (Dari chi kār mikoni?) - This is a more informal version that literally translates to "What are you doing?".
Other options:
* مشغول چی هستی؟ (Mashghul che hesti?) - This literally translates to "What are you busy with?" and is a more casual way to ask.
* داري چي کار میکنی؟ (Dari chi kār mikoni?) - This is a more informal version that literally translates to "What are you doing?".
Using the verb "to be"
* تو چي هستي؟ (To che hesti?) - This literally translates to "What are you?", and is a very informal way to ask "what are you doing?" It's usually used between close friends or family.
It's important to note that the choice of words depends on the context and the relationship between the speaker and the listener.