Post a sound clip of your voice, saying liek "Hello" or wutever. Yeah, we've had one of these threads before, but 'tis old so I'm making a new one!! Not quite sure what a good upload place is, but I'm sure you'll find something free.
If possible, please LAME-encode it. Wavs are so.. 80s. Also, post it with the Google Mp3 Player. Just type the audio url into this link;
http://mail.google.com/mail/html/audio.swf?audioUrl=MP3_URL
Mine <- raaar.
Oh yeah, say it in english and your mother tongue.