When using public computers, there are a few things to keep in mind:

1. Do not save passwords or other sensitive information on public computers.
2. Check to make sure it’s a trustworthy public Wi-Fi network.
3. Avoid accessing any banking or financial websites.
4. Check your computer's security settings and make sure your files and documents are secure.
5. Be mindful of what data you are sharing with the public computer.
6. Avoid downloading unknown applications or software.
7. Make sure to enable a screen-lock or password protect your accounts.