I found a good way to get people to be praying for you: get them irritated with you.
A friend of mine once told me that i had annoyed her a good bit at some point in time. I thought me? Annoy someone...? NEVER. in any case, she said that that caused her to start praying for me. so i decided one thing: one way to get people to pray for you is to get them annoyed with you.
(this was just a funny little note i thought of. i don't actually recommend you do this.) :)