Expressions used in Everyday Spoken English in Social and Professional contexts
If you say that 'all eyes' were on someone it means they are the focus of attention. This could have a positive or negative connotation: "All eyes were on him as he ranted and raved." "All eyes were on him as he arrived at the party in a flashy new suit." This is an idiomatic phrase that can be used in social and professional contexts to talk about someone having the attention of others in a particular moment or situation.