For example, if your classmate says he has to get home soon before it starts raining, and you want to support his decision, can you say “你去吧” ？In English one could say "Go, go!" But obviously this is very informal and only used with friends.
I feel that this phrase can also have a negative connotation, like "get out of my sight". Is this true?
Are there any better phrases, or those that can be used in a less casual context? I.e. something like "go ahead" or "you'd better get going then".
Anyone have some clarification?