I am going to post the very first stuff on the blog.
I found it the most funniest and easiest random thing that you can do anywhere at anytime.
Very firstly, Go up to a child and talk friendly. Then suddenly say "I AM YOUR DAD".
Now the funniest thing to see is their reaction on this. :D :D
Or if you can not find a child nearby, go up to a random person and yell "LOOK WHAT YOU HAVE DONE TO ME!" or "Hey you, the one with the face!".
This stuff is helpful when you are completely bored and none of your friend or mates is with you at that time and you are completely out of resources like electronics and all.