Smile bot is a Discord bot with only one purpose:
Smiling 😄.
Smile bot has only a few commands.
/help - Tells you that there is only the smile command.
/smile - Sends a big smile embed.
/invite - Invite link for smile bot.
/guilds - Shows the amount of servers smile bot is in.

If that's enough for you, invite Smile bot and make your server a happier place. 😄