As a Filipino, I don't think a Filipino would be embarrassed to speak his own language. The only way a Filipino would be embarrass to speak Filipino is if he/she is using deep Filipino which aren't being used in a daily basis. For foreigners, don't be embarrassed, just imagine Filipino trying to speak the language of your origin. Haha and of course, practice harder to master it.
it would be embarrassing for me to speak a foreign language if i can't say the words correctly and properly, i will only do so unless absolutely necessary else google translate or use other form of communication.