First, you need to spot the thief. Then you have to ask yourself to remain confident while confronting him.
Of course you also need to know what else you can use your smartphone for apart from using it for Snapchatting with your friends. So, you must know how to use your phone wisely.
And the key is to not give up. Bikes are precious. You must not let anyone steal them.
Check out the video above to see how you need to deal with a bike thief.