Traffic encryption can be achieved through various methods like: proxy server, SOCKS proxy, VPN, etc. The best and fastest solution is the VPN. Once you are connected to a VPN, all the connections will be encrypted. No one will ever have the possibility of spying on your activity, not even with a MITM(man in the middle) attack.
You can use a free VPN found through Google Search: https://goo.gl/BvvCyO