how to find a lost Iphone

These are user to user forums. You are not addressing Apple by posting here therfore nobody can help you find it. Unless you enabled find my iPhone on the device prior to losing it, you have no chance finding it.

Also, not smart to post your personal phone number on a public Internet forum.

If you had the Find my Iphone app on your phone, log into icloud.com and log in with your Apple ID, go into find my phone, if the phone is turned on and conected to a data connection (wifi, 3g,4g) you should be able to see it there.

I recommend you follow Apple's recommendations on what to do if your iPhone is lost or stolen. See here for more information: http://support.apple.com/kb/HT5668