Merge pull request #3769 from PrismaticGynoid/forgottenlanguages

Brain transplants, synthetics, and languages

code/modules/mob/language/generic.dm

@@ -120,4 +120,8 @@
 	signlang_verb = list("gestures")
 	colour = "say_quote"
 	key = "s"
-	flags = SIGNLANG|NO_STUTTER|NONVERBAL
+	flags = SIGNLANG|NO_STUTTER|NONVERBAL
+
+/datum/language/sign/can_speak_special(var/mob/speaker)
+	var/obj/item/organ/external/hand/hands = locate() in speaker //you can't sign without hands
+	return (hands || !iscarbon(speaker))