Starting a chat for the first time depends on whether you are initiating customer support on a website or setting up a messaging app. On a website equipped with customer service software, look for the floating chat bubble widget usually located in the bottom right corner of the screen, click on it, type your initial question or greeting into the text input box, and press enter to connect with an agent or bot. If you are setting up a chat application for personal use, you will need to download the messaging client from an official app store, register an account using your phone number or email address, grant necessary contacts permissions, and select a contact to send your first message.