I found this by google search of the forum. It seems more appropriate here. Someone else actually figured it out.

happy face

sad face

wink

toothy grin

tongue out :$ cute blush
!c = ♣ !d = ♦ !h = ♥ !s = ♠
have fun!
that was neat- it converted to the emoji ? sometimes - ODD ? the forum may be different than BBO - these seem to work on BBO chat
"To create the colon symbol using a U.S. keyboard , hold down the Shift key and press colon key. The colon key is the same key as the semicolon , located directly to the right of the letter 'L' key. Ok Ok everyone else knows this, I am a senior citizen. "
happy face = colon and )
sad face = colon and (
wink = semicolon and )
toothy grin = semicolon and capital D
cute blush = colon and $
try these on BBO chat, it should work