"How to see the other peoples names who also signed up in a live jotform?"

- basically like google sheets 

You can embed  a Grid Listing report in your jotform, once you create your it:

1) Select your jotform, click on Reports, then on Add New Report:

2) Select the Grid Listing and click next:

3) Uncheck the fields you do not want to show in the report:

4) Copy the iFrame code:

5) Got to the edit mode of your jotform, and add a Text field, and click on Edit HTML:

6) Click on the edit html icon and paste the code:

Save the changes, and preview your form, it will look like this:

You can take a look a the live form here: http://form.jotform.co/form/42436984807870

Let us know if you have more questions, we will be glad to assist you.