When Elena is filming her twitch video, Lydia is sitting in her room, but when she says "Give papito back his things", she is suddenly sat at the table.
Elena claims to have 100 subscribers on Twitch, but didn't make any money. If she had 100 subscribers (not followers), she would have earned around $250 USD.
Alex can be seen wearing his headphones on backwards at Dr. Berkowitz's office and in the car with Penelope.