Q: How do I make it so people can hear me talk

Hi Patty, 

Welcome to Apple Support Communities.

If I understand correctly, there's an issue with people not being able to hear you very well when you're on calls using your iPhone. Try taking a look at the article linked below and running through the microphone troubleshooting tips that it provides. 

Get help with the microphones on your iPhone, iPad, and iPod touch - Apple Support

Cheers.