I would wonder in terms of discretion if a card is risky or not? In his hands someone may come across it that he might not want to have find it, or it might fall into the wrong hands?

I am no expert! Just thinking out loud

A gal handed me one at a M&G.  I haven't seen her yet, but the card is tempting me to.

I think it's only a matter of time.

it could get the hobbyist in trouble by his SO.  Now, all he has to do is throw the card away before he gets home but some guys save the cards for future use.

Yes, it is a great tool to remind a guy about YOU.

One lady gave me a card and it had her web site and phone number along with some flowers as if she provided floral arrangements.

I like the card idea, and have been given several over the years...I give them one of mine as well.

As for a review, I don't think there's anything wrong with mentioning that a review would be nice if they are so inclined.

While it is a nice gesture and well meaning, if someone is going to review you chances are they already know how to find you on TER. Some may even take it the wrong way and feel pressured into writing that review.

The one you give to me is going to end up in the trash long before I leave the building.

I've written plenty of reviews, and remembering the lady has never been a problem.  I don't need evidence of my time coming home with me.

I used to hand out my cards at meet and greets,
now that everyone knows me, I have no need to hand them out.

you never know who he could give the card to or who could find it. so if he is single, the card could be a godsend for you, him passing it off to a friend. If he isn't, you never know who is going to find it.

you might be better off having them in a little business card thing by the door and say " if you enjoyed our time together today and are willing to help a girl with a review my card has my review info on it" and gesture towards it.

guys will almost feel obligated to review you at that point.

it is for the ladies.  It can be a part of the after discussion if the session went well.  Talk about the site you wish you had reviews on.  Tell him you would not mind White listing him if he writes an honest review.

One lady asked me if I would also post it on another website and I was happy to.  If she had not asked I never would have known that was important to her.

I used to ask for Whitelist referrals until I got a couple. I still may if I really connect. One of the ladies needed to be emailed how to do it.

As for cards and call backs I personally do not want a card.  This is something for my SO to catch me with.  I am more likely to see a woman again that emails me with kind words after I have seen her and makes me feel special.  A "thank you" or personal touch goes a long way.

Don't you like it when a client texts you a big thanks afterwards?  I like it too but my email is more descrete.

I also see a woman that has helped me mentally with my personal life.  In addition to her body and actions being hot, her mind is a turn on.  (Thanks Vivienne)

There is no mystery why/how some providers get scores(if not hundreds)of reviews.

1. They offer excellent service.

2. They diplomatically request the favor of a review which serendipitously enlightens a possible 'Newb' to TER.

I think it's a bad idea.  
If he sticks it in his pocket & forgets it, he gets caught.
If he throws it in the trash, then there's X number of your id cards floating around waiting to be found.  
If you have contacted the gent by e-mail...  hope his is secure...  you could ask him if he would write a review.  If he says yes, ask if you can e-mail him a link to TER & anywhere else & include your id info.  He can refuse, but at least he'll not be surprised...  
What do others think?
skb

...I'm not interested in giving a client anymore rope to hang himself with than me all over his email or phone records.

It's clever marketing/branding for parties but on a daily basis?  I think not.