What is somebody like?
Definition 1 of 1
Pro Tip 1/3Context Matters
Use 'what is someone like?' to get descriptions of new or unknown people you're curious about. 
You met my sister at the party, right? So, what is she like?
Pro Tip 2/3Avoid Physical
Focus on personality and behavior, not physical appearance when answering this question. 
'What is Tom like?' 'He's really kind and funny, always telling jokes.'
Pro Tip 3/3Informal Use
This phrase is more common in casual conversations rather than formal or professional settings. 
'Hey, what is your new roommate like?' 'She's very tidy and likes to read.'