Well, although it's fairly easy to slot hypnotic commands into your everyday conversations, you'll still need to practice a little bit. Sorry. The good news is that ? like everything in life ? the more you practice, the better you'll get. And your practice can be done on real people, so you'll get to know what's working for you and what isn't.
So the good news is that this practice can be while you're learning. So long as you don't sound too stilted when you're talking to someone, they probably won't know that you are doing your best to hypnotize them. So if it doesn't work out, that's fine. You'll know that what you were experimenting with didn't work but they won't. So it's a win-win situation: when your trials work out, that's great and when they don't go as well as expected, that's fine too. Think about it, you didn't learn to walk or ride a bike or drive a car instantly. It took time and practice. This is the same.
It's usually best to build up some kind of rapport with the person you are hypnotizing. So don't just start your chat with something like "go into trance now". Instead, make sure you're both comfortable talking with each other. Nothing too heavy, but enough that you're chatting fairly normally. You can research rapport building elsewhere but essentially it's just a fancy name for getting "in synch" with the other person and not getting their back up.
Then you need to induce some kind of hypnotic trance. One of the easiest ways of doing this is to get the other person to imagine a place or an event. If you know they've just been away on vacation this is quite easy. If you've shared past experiences, the same goes. If not, pick something likely to have happened in the recent past - their journey to work, a television show you know they watch, that kind of thing.
Once our imagination starts working, its quite easy to throw in some hypnotic commands and it will work on them quite happily.
Commands can be anything you want (so long as it's ethical!). You can introduce immediacy using words like "now". "So think back now to a time when..."
Questions work quite well for embedding commands as well: "Did you ever think about ..."
These commands can be positive or negative - be careful what you are saying and if possible avoid negative people who are consciously or unconsciously giving you negative commands - "Gee, this is like a madhouse here", "That music is like a funeral march", that kind of thing.
Once you start becoming more conscious of the words you are using, you'll find it becomes easier and easier to use hypnosis in your everyday conversations.