Don't expect to get a positive response from every media contact you pitch. Some may ignore you, some may reject you, and some may ask for more information. You need to be patient, persistent, and polite, and follow up with them after a reasonable period of time (usually a week or two). You can also use social media to interact with them, share their content, and comment on their posts, to show your interest and appreciation. And when you do get a response, make sure to reply promptly, professionally, and enthusiastically, and provide any additional information or materials they request. You also need to respect their deadlines, guidelines, and feedback, and deliver on your promises.