What's been keeping you busy?

Meaning

A casual inquiry about someone's activities.

Examples

• John: 'Hi Alice, long time no see! <b>What's been keeping you busy?</b>'
• Alice: 'Oh, hi John! Work has been crazy lately.'
• John: 'I've been busy working on my new project.'
• Alice: 'Hi John, how are you? <b>What's been keeping you busy?</b>'