Is it normal to talk to multiple people at once?
Mostly.Normal for most people
Yes, it’s common to talk to more than one person while you’re getting to know them, especially before you’ve agreed to be exclusive. The important part is being honest and respecting any agreements you’ve made.
If you mean romantically, lots of people date or chat with a few people at once while they figure out who they click with. There’s no universal rule that you have to focus on one person from the first conversation.
It can feel awkward if someone assumes you’re exclusive, though. If things are getting serious—or they ask—be clear about where you stand. Talking to multiple people is one thing; misleading them about it is another.