I tease non-Texans that Texan English is actually superior to normal American English because it supports second-person plural via "Y'all" exactly as mentioned in this article... "you guys" is, to some ears, sexist, and "youse guys" (a New York-ism) is a little too old-school Italian.
English lost its second person plural when we switched from Thou (second person singular formal + Thee=second person singular informal) and Ye (second person plural) to just "You", but Texans rightly have solved the problem and kept the clarity. (The more-modern "Yo" is delightfully brief but as ambiguous as "you".)
Now... if you want to tease a Texan back about all this, you can ask them whether that implies the proper phrase for when you enter Texas then should be "Abandon hope all y'all (was: ye) who enter here!"
English lost its second person plural when we switched from Thou (second person singular formal + Thee=second person singular informal) and Ye (second person plural) to just "You", but Texans rightly have solved the problem and kept the clarity. (The more-modern "Yo" is delightfully brief but as ambiguous as "you".)
Now... if you want to tease a Texan back about all this, you can ask them whether that implies the proper phrase for when you enter Texas then should be "Abandon hope all y'all (was: ye) who enter here!"