Do These Five Emotionally Intelligent Things Within the 5 Minutes of Meeting Someone. article 
Further note: The notion these are "emotionally intelligent" is a come-on phrase (click bait) that sounds scientific but has no experimental basis. Still, it has plausibility. The author of the article, Harvey Deutschendorf, makes a career out of "emotional intelligence". search
Summary:
1. Show Genuine Enthusiasm For Meeting
2. Offer A Compliment
3. Ask At Least Two Open-Ended Questions
Comment: Terri Gross says she likes to say, "Tell me about yourself."
Note: These are things which probably many people do automatically but I need to remind myself to do. Often on meeting people I am thinking of something else rather than the impression I make on them.
4. Find Something You Share
Comment: There is always at least one thing you have in common - you're in the same place at the same time. Is there something about that place or time that you can comment on that the other person can react to? Of you may something deeper in common, so go with that.
5. Say Their Name Before You Leave, And Commit Key Facts To Memory
"At a minimum, make sure to say their name when you’re about to leave...Finally, emotionally intelligent people reinforce the likability they’ve banked during first impressions by remembering a few key details later on. The names of a new acquaintance’s partner, kids, even the pets they have or that vacation recommendation they shared—that’s all useful information to refer back to the next time you see them.
Comment: You can make notes on your phone.
Further reading from my bookshelf:
How to Work a Room, by Susan RoAne. (1988; rev. edition 2007)
The It Factor, by Mark Wiskup (2007)
These books were big in Silicon Valley when people thought that if they made an impression on the right person in an elevator then that could be the start of a billion-dollar high tech business.