My husband has a gmail account and wants to use the same computer as mine. How do we get his on the same laptop. When I try to look up his gmail. only mine comes up. How do I set his up as well

Bring up Gmail, click your username, then select "Sign out." You can only be logged in to one account at a time. You'll have to log out of one account and log in to the other each time you want to switch.

Alternatively, use two different web browsers. You can log in to one account with one browser, and log in to the other account with the other browser.