Yeah, usually emoting comes after at least a few minutes, but you CAN work it in earlier. If you were to come up to a set and start talking about something they are wearing in a positive light, then that would be emoting and then you just follow it up with something negative to turn it into a neg and you're good. For instance, "God, I LOVE your hat, wicked stylish! Too bad it TOTALLY clashes with the rest of your outfit!

" Notice the words in caps are showing that you are enthusiastic and have emotions, and the smirk or wink at the end shows you're just playing with them. Typically they'll pretend to be offended and you can play fight a bit before leading into something else.
You can also take another route and be strong and dominant and alpha and show all the other characteristics, while acting like nothing phases you, like you're in charge of the world and you know it. You're dominant and nothing could bother you, but still friendly of course. After you've done this long enough for them to see that its not just an act you put on, you can show emotion by talking about things that you are passionate about, whether its music, or movies, or anything that won't make her lose interest. By showing your interest in those things, you've emoted and shown her that underneath your tough exterior, you've got a warm heart and she'll want to bring it out if she likes what she sees.
Then you can do just about anything in between.
Emoting doesn't have to be going, "Oh my mother is sick, so I need to fly home to take care of her, she's such a wonderful lady, I love her so much.

" Sure, if done right you can use that, but you can also just express your love for art, or a certain genre of music that you share a common interest in. The real key to making a good connection when you're emoting, is to find something that she has an interest in as well, or at least values other people's interest in it. If you love heavy-metal and she listens to classical, then you're not winning any points. If she is the kind of person that values family above all else, then the line up above will make her melt.