The people you contact should have close to the same number of likes as you do. If you contact someone with a small number of likes compared to the amount of likes you have, then you won’t get the good end of the deal. If you contact someone with 10 times as many likes as you, then that person probably won’t agree to do the shout out exchange since that person wouldn’t get the good end of the deal. If you have 3,000 likes, you should be contacting people who have 2,500-5,000 Facebook Page likes. That way, more people will say yes to your shout out request. You can both agree to delete the shout out post eight hours after you both send the shout out posts so your Facebook Pages don’t appear over-promotional. Most Facebook Page owners say no to these types of requests, but if you get 10 people with 3,000 likes to say yes, then your Facebook Page will be put in front of 30,000 additional people who may then choose to like your page.