Tips for becoming a gentleman:

1. Maintain eye contact.
2. Find a good tailor.
3. Speak softly but carry a big bag.

For that, turn to The Gentlemen’s League, an alliance of talents (industrial designer, graphic artist, creative visionary) customizing mason totes with black indelible ink.

The hand-drawn canvas tattoos are 100 percent unique: You choose the iconic imagery you want to be associated with (serpent, queen of hearts, cherry blossom). Like men of good standing, each bag is designed with public and private sides (one is showy, the other has secret details) and monogramming as you see fit.

The everyday carryall is lightweight with a leather bottom and handles (in black, brown, or white) and hinges that keep it open and standing on its own.

That’s how gentlemen prefer it.

Available at Début New York, 298 Mulberry Street, between Houston and Bleecker Streets (212-343-2717 or debutnewyork.com). Trunk show, Thursday, 6-8 p.m. To see styles, go to thegentlemensleague.com.

Here’s your chance: Invite a gent in the rough. (This might be the only trunk show he’ll ever agree to attend.)