How are you?

 How have you been? অনেক দিন পরে দেখা long time no see

I have been great/ awesome.

How are things? অন্যরা সবাই কেমন আছে

They are quite fine/ keeping fine

What's it going? দিনকাল কেমন যাচ্ছে

It is going fine.

What's new?

I am going to buy a flat.

How are you doing?

I am keeping well.

How are you getting in with your studies?

I am getting on very well with my studies.

তোমার দিনকাল খুবই ভালো যাচ্ছে এমন বুঝালে I am euphoric