p_p
An emoticon in which it represent looking to the right (or left if you use q_q) and may also means "I'm looking away from you", which is usually what it signals. So if you see someone use this emoticon, you should probably stop talking.
"Ello mate, I'm-" "p_p" "eh...nevermind"
P_P
Look it's a snail!
P_P #1: Yeah I just robbed a turtle.
P_P #2: NOICE!
P_P #2: NOICE!
P_P
The emoticon - P_P, is named the serious face, for its serious look. It can also be used lightly for sarcastic seriousness. Though the seriousness of the statement or question is up to you.
Serious: "I am going to take a shit today. P_P"
Sarcastic Serious: "I am going to take a shit today. P_P"
Sarcastic Serious: "I am going to take a shit today. P_P"