Galaxy S4 Glass Loca Glue

[Mrcreamy]

Hi, I would like to change my friend's galaxy s4 glass. I saw that we need to put loca glue on between the glass and the phone to have a good job..
The thing is that How do you do to not getting the ear speaker and the home button glued as you spreading evenly all the surface of the phone ?:blink:

thanks