In fact there are, visit this thread to know more about Emoticons: http://sealonline.wikia.com/wiki/Emoticon

Here is a list of gestures that your character can use aside from the emoticons:

Agree: /agr

Angry: /ang

Bow: /bow

Cute: /cut

Frustration: /fru

Congratulate: /gra

Greet: /gre

Scare: /sca

Sulk: /sul

Threat: /thr

Whine: /whi