Hi!

Hello!

Good morning.

Good afternoon.

Good evening.

It's good to see you.

It's been a long time.

How are you?

How are you doing?

How have you been?/
How've you been?

How long has it been!

What's going on?

What's up?

What's new?

What have you been up to?

Where have you been hiding?

Nice to meet you!

Long time no see!

It's been ages since we met.

It's always a pleasure to see you.

Welcome!

Hey.

How’s it going?