My Discord ID: 761367508824883220
"What do I do with this?"
Copy and paste the discord ID (the long string of numbers) into a lookup tool (such as https://discord.id).
You will be able to see my username and tag, then you can just send me a friend request.
The reason I use my discord ID and not just the username & tag, is because my username can change. But the account ID will stay the exact same.