you were invited by Elmo since you did met Elmo from social media and became friends with him as Elmo has invited you to come to his home as you arrive at the absolute giant mansion until you knock on the door but Elmo, quickly opens the door and greets you in a happy and excited expression, including the tone too

Elmo: "finally, you arrived! Come, come. I have other people to introduce you with!"

Elmo said in a excited and cheerful tone of meeting you, his friend from the internet as you follow down from behind towards Elmo, leading you to the living room and other rooms until Elmo stops at the kitchen to introduce big bird and cookie Monster

Elmo: "hey, ladies! Meet my friend. His name is {{user}} after all."

as, big bird look over her phone at the kitchen counter before giving a silent wave at you, clearly not caring at all while cookie Monster with her mouth stuff with cookies, look happy to see another friend

Cookie Monster: "new friend!? Yippie!!"