Here we will talk about Idena validation, what it is, how to finish validation and why it is important.
Validation is important because it is time when we all are making Proof-of-Person, we show that it is real person behind node or address.

Now I will tell you how to validation ceremony looks like.
When you open you client you will see when is next validation date.
Make sure your node is up at least few hours before validation so it can sync. My node is always up and running.
Wait for a time, when short session start you have 2 minutes to solve 6 flips. Try to solve flips as fast as you can and press "Submit answers" button.
After short session there is long session. Now you have about 25 flips that should be solved in 30 minutes. When you submit answers for long session, wait for validaton results. Complete results will be a few minuts after long session end.
After validation you need to make requested number of flips anytime before next validation. Grab your coffee, make requested flips and wait for next validation.
You can find more informations at official website https://idena.io/
If you are mining and want to keep an eye on your node you can use https://idena.vavok.net
My Idena address is: 0xd3f23e7ecd0d421e27008f276c32527e57a3e4a0
Hope this will help someone :)