Yeah, you'll get used to that

Twilight Sparkle: *sighing* This is such a beautiful place to rest! The soft green grass, the coolness of the water and the fresh breez-
Rainbow Dash: HEY! Watcha doing?
TS: I was relaxing. Before you jumped on me. 
RD: *gasps* You left your books alone? Sweet Celestia, Twilight! Are you ok? You feel fine, don't you? Did you crash your head somewhere lately? I'll have to take you to the hospital, you're defenitely hurt!
TS: You are going to hurt me, if you keep on springing like this! *pushes Rainbow away* Also, why are you even here? I thought you were with Fluttershy feeding the Crystal sheeps or some other little critters. *mutters* The only time I find a peaceful place, somepony has to interrupt the stillness! And this somepony is usually either you or Pinkie.
RD: Buuuut we do it 'cause we care for you. I mean, what if some monster jumps out of nowhere and tries to eat you up? Uh? What would you do?
TS: Rainbow, I fought Tirek on my own not much tim-
RD: Exactly! You would just stay there, helpless, paralyzed by fear! This is way we always hang around you.
TS: *rolls eyes* I guess I have to be glad of this. Thank you so very kindly, my possible savior! *bows*
RD: Much better. *turns head* Oh, look who's there! 
TS: *follows Rainbow's glance direction and suddenly lowers ears*
RD: That's Flash Sentry! That Royal Guard of the Crystal Empire! HEY, FLA- *Twilight covers her mouth*
TS: Don't you dare calling him!
RD: What? Why? He's so nice and it looks like you get on well with him. Too well...
TS: Ah-ah, very funny. Now, since you've broken my internal peace, let's go somewhere- anywhere else before he sees us...
RD: Too late.
*Flash glances at the couple of mares, then smiles at them and winks at Twilight, lifting a little his wing to greet her*
TS: *wings flare open*
RD: *suppresses laughter and grabs Twilight with a hoof* Yeah, you'll eventually get used to that. That's a normal things for Pegasi. 
TS: *awkardly tries to fold her wings with her hooves* I just can't control them! *blushes*
RD: Neither can I. But, you know, this is a sign among our species, and it has a well known meaning... 
TS: Don't you say that! Somepony -he- might hear!
RD: No need to get angry, Twi, the reason is so ovious; I won't even have to say that... 
TS: *eye twitches* H-He knows...?
RD: Well, duh, of course! He's a Pegasus, first. Any Pegasus born as a Pegasus knows that thing. And, uhm, hello? Ponies here talk about nothing but the way you steal glances at him, lately... So, basically, you've said loud and clear what's going on in your mind when you see him. ...Things I don't wanna find out-
TS: SHUT UP!