How to make public browsing private?

[Gentleman_10]

I am concerned about privacy in public places like cafes or hotels. Which one of the following situations provides more privacy?

1)If I use TOR browser. Does that make my browsing private?
2)If I use a wifi USB adapter as a hotspot for my tablet. I will be taking the net connection from the network computer but do the browsing on the tablet.
3)If I use a VPN?

[Train]

VPN