Crewmate doesn't work well in Classic mode but Story mode is a maybe
Viewing post in Among Us Story Mode (Parody) comments
It can be challenging to just come up with something to say off the cuff, especially if you're thrust into the role of the Impostor, but even when you're just a simple Crewmate. For this reason, i strongly recommend that you plan out what you're going to say and rehearse several strategies. By playing tons of games and trying out these scenarios you'll start to understand how you should behave.