How do you castle in Chess960???

See this position?

I don't know how to castle in this position...it is an ongoing game, so I don't want any move recommendations. I just wanna castle. How do you do it? 

As far as I know, I am supposed to drag the king onto the castling square once the field is clear, but in this case, the king is already sitting on the castling square!

The most important thing to remember about castling in a 960 game is that the King and Rook end up on exactly the same squares as they would in a standard game:

• Castling king-side (0-0) results in the King on the g-file and the Rook on the f-file; 
• likewise, castling queen-side (0-0-0) leaves the King on the c-file and the Rook on the d-file.

As always, the King and relevant Rook must not have any pieces between them; the King cannot move out of or through check; and the two pieces cannot have moved prior to castling.  Same as always!

If you're having "technical difficulties" trying to castle (especially where there is only one square between the King and Rook), click first on the King, then on the Rook.

Source: https://support.chess.com/customer/portal/articles/1444897-how-do-i-castle-in-a-chess960-game-

Thank you!

You're welcome mate! If you want, we can play some Chess960 in the future. I love it!

Sure. I am just starting out with some games..

You drag the king to where the rook is I think.

I'll play too!

It would be a pleasure.  Let me add you on my friend list.

I accepted.

i think all you is switch the king and rook

I wanna play!

I would like to play 360 more often but it's difficult to get matched up.  I usually go for 3 minutes but after a while there are no takers and I cancel the challenge.  Any suggestions?

Oh.  I meant 960.

Not sure. It works with me..

If you like, play correspondence 960.

You can play too.

whys it called 960?

Because 960 random positions are possible.

In this position over-the-board 960. You can play Kc1 and 10 seconds later toss the rook over.

I imagine once in a blue moon, you can use this trick to your advantage.