Having no arms might normally be considered a disadvantage. But with skill and good roleplaying you can turn a game-related penalty into something advantageous. Just make sure to neglect to remind the GM about any rule to the effect that a disadvantage that doesn't have an in-game drawback isn't really a disadvantage.

Transcript

Han: We're gonna need more than a bar for real R&R.
Chewbacca: Indeed. One remembers the time when we—
Han: C'mon darlin', how about you just let me and the kid head off-world for a while. I trust you to keep things running while I'm gone. {puts arm around Leia}
Leia: What are you...
Leia: Get your arm off me!
R2-D2: This is why some of us chose to have no arms.
Leia: Yeah, so they don't get ripped out of their sockets.
{Leia goes to Luke}
Leia: I'm incredibly glad you're okay.
{Leia kisses Luke}
Leia: You were right, there is a traitor. And I know who it is.
Luke: Shhhh! Wedge could be in the room even now!