How do you use the speaker phone on the lg secret?

if you are talkin about when you are on the phone and you want to turn the speaker on then press the middle button after it says 'conditional divert activated'

If are talking about getting the phone louder in general, then press the left button go over to loud(speaker with lines coming from it) and then to arrange the loudness of it you use the buttons at the side up or down.

If you want to change the settings go to settings then profiles and then you can mess about with it until you get the right things you want!!