Can you explain the parts [1⃣ ... ]?

Sheldon: Okay, that's it, I don't know how, but she is cheating. No-one can be that [1⃣attractive] and be this skilled at a video game.
Penny: Wait, wait, Sheldon, come back, you forgot something.
Sheldon: What?
Penny: This plasma grenade. (Explosion.) Ha! Look, it's raining you!
Sheldon: You laugh now, [2⃣you just wait until you need tech support.]
Penny: Gosh, he's kind of a sore loser, isn't he?
Leonard: Well, to be fair, he is also a rather unpleasant winner.
Penny: Well, it's been fun.
Leonard: You know, Penny, we make such a good team, maybe we could enter a couple of Halo tournaments sometime.
Penny: Or [3⃣we could just have a life.]
Leonard: I guess for you that's an option.