whatsapp audio And security pattern

hey all
1st off is there a way to listen to whatsapp audio messages on the Lg Urban 2nd edition
2nd does anyone know how the security pattern really works because i find it asks me more for the pattern when on my wrist than when i take it off, how long before it should lock when taken of wrist because for me it never locks, occasionally it is locked the next day but not always
3rd the draw an emoji replay on whatsapp never shows up, it says sent but doesn't show up in conversations, it does on the other hand work when sent too someone from the contacts book very strange thanks for the help