Whoa, I didn’t realize that it was so deliberate, I honestly thought it was unconscious

Scary, scary.

Gonna add on to this:
From the other side of the bar, I see this crap all the time. Seriously. I work at a high-density bar, and let me tell you, I have anywhere from 10-20 guys every night come up and tell me to, “serve her a stronger drink, I’m trying to get lucky tonight, know what I mean?” usually accompanied with a wink and a gesture at a girl who, in my experience, is going to go from mildly buzzed to definitively hammered if I keep serving her. Now, I like to think I’m a responsible bartender, so I usually tell guys like that to piss off, and, if I can, try to tell the girl’s more sober friends that they need to keep an eye on her.
But everyone- just so you know, most of the time, when someone you don’t know is buying you a drink, they’re NOT doing it out of a sense of cordiality, they’re buying you a drink for the sole purpose of making you let your guard down. So:

Tips for getting drinks-

1. ALWAYS GO TO THE BAR TO GET YOUR OWN DRINK, DO NOT LET STRANGERS CARRY YOUR DRINKS. This is an opportune time for dropping something into your cocktail, and you’re none the wiser.

2.IF YOU ORDER SOMETHING NON-ALCOHOLIC, I promise you, the bartender doesn’t give two shits that you’re not drinking cocktails with your friends, and often, totally understands that you don’t want to let your guard down around strangers. Usually, you can just tell the bartender that you’d like something light, and that’s a big clue to us that you’re uncomfortable with whomever you’re standing next to. Again, we see this all the time.

3. If you’re in a position to where you feel uncomfortable not ordering alcohol:

Here’s a list of light liquors, and mixers that won’t get you drunk, and will still look like an actual cocktail:

X-rated + sprite = easy to drink, sweet, and 12% alcoholic content. Not strong at all, usually runs $6-$8, depending on your state.

Amaretto + sour= sweet, not strong, 26%.

Peach Schnapps+ ginger ale= tastes like mellow butterscotch, 24%.

Melon liquor (Midori, in most bars) + soda water = not overly sweet, 21%

Coffee liquor (Kahlua) +soda = not super sweet, 20%.

Hope this helps someone out!

Backing this up from years of bar tending.