Welcome to the forums.☺
I'm not familiar with that phone, and it depends on what Keyboard app you are using, but try the key bottom left and the one above it, also the return key bottom right. Various combinations may lead to the emoticons, as I call them. Long-pressing the magnifying glass icon bottom right, if you have it, should give the option to select emoticons.
Excuse me for being vague....my cat is sleeping on me at the moment and I can't quite reach my Nexus 5, on which I've experienced that problem in the past, to check things exactly.
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