Key click sound changes volume?

[edokid]

Hey everyone just got my first iPhone, weird issue though. When I type it obvously makes the audio clicking sounds which I like, but a lot of times the volume is different. I'll be typing a message and the click will be faint and not noticeable then other times its much louder. It even changes during a sentice, might start out quiet then gets louder. Is there a reason for this or is something wrong here? It's not a huge deal I just can't figure out why it does it. I thought maybe the speed I type or the pressure did it but nothing seems to change it. All my other audio is fine!

[big9erfan]

Make sure you're not covering the speaker with your hand. It is at the bottom left of the phone. The right side is the microphone. ( or it's vice versa, but I think this is right )