@fireinbf dude! I'm mostly high energy because I'm usually night gaming in a club, but I can go low energy when I need to. Usually mirroring their state is the best way to approach, it makes you seem relatable, you're on the same wavelength, you're not a buzz kill or coming in to hot and they'll feel more comfortable however this isn't a hard and fast rule.
Just saying something as casual as "hey girls" in a slightly more energetic way is enough to open and you can bounce off their vibe and energy if they're receptive. If not it was very low effort anyway.
If you can't do that or feel it'll appear fake think James bond. He's very low energy in seduction, it's slow, deliberate and calculated. The key to making this work is curiosity. You're intrigued why they're partying, where they're going. Highlight the difference non verbally, you open and they hit you back with their high energy, then you very inquisitive or cold read - you seem very energetic you must be out celebrating? (Again using curiosity) this sets your tone apart but that you're in control. Create enough mystery or seem really laid back and cool and they'll be curious about you.
You can also screen or disqualify yourself in the statement by asking if they're going out to meet their boyfriends. You can tease and be playful here unless you're serious low energy and then if you're a conversationalist who can get them talking (they'll have no issues talking if they're giddy and up to party) while you just listen. Very low energy for you dude. You can slow down bond style easily and create a lot of tension doing so but don't alienate her state to much as she'll eject if you're too low energy for her.
