There's a problem with "Let’s hang out" and other such generalized statements. When people ask someone out this way, the person being asked this question usually never knows what they're being set up for. Most of the time, they are left wondering who is going to pay for the movie tickets, and whether or not they should wear that outfit they look the most attractive in.
This makes for many an awkward moment during the course of the hang out, and gives the impression that the person inviting you to "Netflix and chill
" might not even be that interested. You’re just another friend to fill up their weeknight — no matter how much courage it took for them to actually see what you are doing. That’s just what happens when you ask a hot guy or girl out the way that you would invite your friends to get Chipotle with you.
Yes, you can say "Let's hang out" to someone you have already been dating. You can say that to someone you met on Tinder or on a dating website, because hell, it is
a dating site; you both know what you are there for! But, for that new person you are interested in? I'm sorry, but you just can’t. Don't do it, unless both of you are so obviously aware of what you are to each other. Chances are, you're both skeptical, anyway.