Smile in the Text
Материал из боты telegram - ebot.one - редактор ботов
Also on the issue of syntaxes can be read in Syntax of multimedia materials and text processing
Smile codes can be found here:
To attach a smiley use the syntax as in the screenshot. Here are the syntax options:
[smile|\ud83d\ude01]
[smile_utf8|xF0\x9F\x98\x81]
[smile_unicode|\u1F601]
Screenshots: