Well I suppose that would depend on why you're doing it. If I remember correctly he's the guy that operates Elmo on SS. From the tone of what you wrote it would seem that you're looking to get a job as a puppeteer from him... personally I think that approach most likely won't get you far (unless that's why he's going to be in Texas) because if he's a performer and not necessarily a producer. Think about it from his perspective.
If I came to town promoting something that I was involved in and someone came up to me and gave me a "demo tape" I may or may not be inclined to pass it along to my manager or producer depending on (a) how nice and genuine -- and non-creepy I felt they were (b) how interested in me as well as my craft -- I am promoting something remember and (c) if I felt there was some sort of rapport with that person in the brief time we spent chatting to merit me sticking my neck out and telling my manager/producer/who-ever to look at the tape. Remember, unless he's ALSO the producer he's most likely not going to have much if any pull with the people who are doing the hiring.
Now on the other hand if someone were to come up and give me a tape of a sketch or something like that I may be more inclined to look at it because it takes the pressure off of me to be responsible if the guy gets hired or not.
So my advice would be to strike up a conversation, be cool, have a good time, mention that you're a puppeteer as well, maybe talk shop, mention that you have a couple skits that you think he might like (post them on YouTube so he can look you up later if he chooses) and IF he solicits a copy then say, "yea I think I might have one on me" .... doing it this way does a couple things. If he asks for it then he's more likely to actually look at it. Also if he solicits the material then it gives you (some) protection legally should material that you do shows up in a project that he's in. This is why movie studios and record companies don't generally accept unsolicited material. Remember though, he may be under strict orders from his handlers NOT to look at ANY material that's handed to him for just that reason.
I'm not trying to discourage you, I'm just letting you know some of the realities IF he's not out looking to hire people. Bottom line, just go to whatever this event is and have fun -- if you get the chance to meet him, treat him like a human being, remember there are probably going to be a couple dozen other people that are going to try to pass their demo tape to him so if you do it, try to be cool about it. And please please please don't do any Elmo-esque skits in the tape you give him. If you copy his work, he'll think of you as a fan, if you show him something original he may think of you as a peer.
/soapbox