Here are 5 tips gleaned from the article "Four Ways to Surf Safely at Starbucks" in PC Magazine:
1. Keep your firewall, antivirus and antispyware up to date and turned on.
2. Keep your Operating System up to date.
3. Disable your File and Printer Sharing in the Firewall settings.
4. Disable your Ad Hoc Networking in your Wireless Utility.
5. Insure that any website into which you type personal information is secure.
The above 5 tips are condensed from the PC Magazine article. Please read
both pages of the article at the below link for more important details.
http://www.pcmag.com/article2/0,1895,2109464,00.asp