What can I do to show respect for the late Thai Kings funeral

Over the past couple of weeks I have seen a large number of people asking questions about what to expect for the late Thai Kings Funeral. In addition to my post a couple of weeks ago that gave an outline of what is happening for the month of October 2017 in Thailand, from the10th to 30th of October while the country mourns for their beloved late King Bhumibol Adulyadej (who the entire nation lovingly referred to as Dad) I simply wanted to mention some of the symbolism that you may see when if you are in Thailand during this sensitive and important time. Most of the Thai people will be wearing black clothing during this time, especially for the days from now through to the end of October 2017, so yes it would be a good idea and very respectful of you if you felt like wearing some black clothing or even a black t shirt during this time, I am sure it will be well received. Black clothing is being sold everywhere.
The other images attached are of a black Ribbon that you will see many people wearing and if they are not wearing it, it will be printed on the shirts they are wearing. The other symbol in the images attached are the Thai symbol for the number “9” or pronounced “Gao” or “G-ah-w” depending on how you read this. The number 9 symbolizes their beloved late King Bhumibol Adulyadej as being the 9th King in The Chakri dynasty which is the current ruling royal house of the Kingdom of Thailand, while the Head of the house is the monarch. The dynasty has ruled Thailand since the founding of the Rattanakosin Era and the city of Bangkok in 1782 following the end of King Taksin of Thonburi’s reign, when the capital of Siam shifted to Bangkok. The royal house was founded by King Rama I, an Ayutthayan military leader of Sino-Mon descent.
A Public Holiday has been declared On 26 October, the coffin holding the king’s body will be brought on the royal chariot, pulled by hundreds of men, after sunset and the king will be cremated. Next morning his ashes will be collected in the specially-made urn and transported to the Grand Palace and then to their final resting place in the Chakri Mahaprasat hall.
I believe that Family Mart stores are selling wrist bands that can be purchased and worn during this time as well, so if you would like to show any form of respect these can be worn as well in conjunction with a black t-shirt. Any show of respect and participation would be greatly appreciated.