How do I choose 'White?'

Everytime I play, I always get 'chosen' to be black and my name is at the top of the board.  However, I want to play 'white' with my name at the bottom.  Can anyone tell me how I can choose to play 'white??' 

Thanks!!

The option to choose your colour in RATED games against a random opponent was removed some time ago to prevent any player from ALWAYS choosing white (or black). Now the system decides for you, in order to keep the choices even.

Out of your last 9 completed games, you played as white in 6 of them. The system is assigning you black in order to restore the balance.

If you select an UNRATED game, you can choose the colour.

i wanna be white while playing against bots tho

You can choose color for bots.