Use special keyboard: the keyboard of mobile phone or computer comes with special symbols and characters, which can be used directly when inputting. For example, in the input method of WeChat, you can select the emoji button, find the corresponding emoji and send it.

Manual input: some special characters can be generated by manually inputting key combinations. For example, in Windows system, you can press and hold the "Alt" key on the keyboard and input a specific number at the same time to generate the corresponding emoji.