The important thing to look for is the ring, or a flower in the man's buttonhole.
From the edp24.co.uk
Bear that sinister fact in mind when next you pluck an orchid for your buttonhole.
From the economist.com
Some investors have gone to extraordinary lengths to buttonhole Ergen.
From the businessweek.com
Michael Cullen invested in a new suit and wore a rose in his buttonhole.
From the nzherald.co.nz
Often two or three buttonhole places are available on a given fistula.
From the en.wikipedia.org
The golden man doesn't so much welcome arrivals as buttonhole them.
From the economist.com
Outside Valdez Hall, at least 15 Democrat volunteers were trying to buttonhole potential voters.
From the fresnobee.com
This loop can be slipped over one side of the cape and buttoned to the center neckline buttonhole.
From the tennessean.com
A flower delivered each morning to the door for the buttonhole.
From the time.com
More examples
A hole through which buttons are pushed
Lobby: detain in conversation by or as if by holding on to the outer garments of; as for political or economic favors
Buttonholes are holes in fabric which allow buttons to pass through, securing one piece of the fabric to another. The raw edges of a buttonhole are usually finished with stitching. This may be done either by hand or by a sewing machine. ...
A boutonniu00E8re (French:u00A0) is a floral decoration worn by men, typically a single flower or bud. Boutonniu00E8re is the French word for u201Cbuttonholeu201D.
In knitting, buttonholes can be made in several ways.
A hole through which a button is pushed to secure a garment or some part of one; a flower worn in a buttonhole for decoration; To detain (a person) in conversation against their will
(buttonholing) The act of detaining someone in conversation against his or her will
From buttonhold (originally a loop of string that held a button down)