Congratulations and welcome. You can probably search the forum for "new owner" or "newby" and find loads of advice. You sound like an experienced rider so moving to an LT should not be too big of a deal.
The two primary issues for a new owner are low speed handling and how to keep it from falling over when using the side stand. Above about 5 MPH the LT is a dream to ride. It is as smooth and comfortable to ride as any touring machine out there, most here would say better than anything else, with near sport touring riding characteristics. It is a little top heavy and not exactly flickable but it carves corners better that any touring or cruiser class bike out there and probably would give a number of sport touring bikes a run for their money.
Below 5 MPH the high center of gravity starts to get your attention. After a few thousand miles I really didn't notice it that much any more but at 6' 2" and 230 pounds I can usually muscle through any errors in low speed technique that I may make, hypothetically speaking of course
. So if you are inseam challenged or riding two up pay particular attention. The basic advice for low speed or stopping maneuvers, as in when you get below 5-10 MPH, is to keep your head up and use your rear brake if you are not travelling in a strait line.
The falling off the side stand issue is easy to avoid if you don't let past experience with other motorcycles get in the way. Always leave the bike in gear if you are using the side stand. The best procedure is put the bike in gear, push it forward until the engine compression stops you, make sure the side stand is all the way forward then put it over onto the side stand. If there is ever a chance your rider will try to move your LT make sure they know how to do it, otherwise do it yourself. If using the front brake to stop with the front wheel turned doesn't put your LT down then forgetting this little procedure will.
Otherwise it's like getting on any new motorcycle. Ride it a little easy to start with and practice low speed maneuvers until it feels right. Oh by the way, the third most common advice, actually it is probably the most common advice, is to ride it like you stole it