To insert a smiley, just type in your favourite from the table below. They're only converted to an icon though if they are surrounded by whitespace.

]]>
Markup Display Markup Display Markup Display Markup Display
X-( X-( :D :D <:( <:( :o :o
:( :( :) :) B) B) :)) :))
;) ;) /!\ /!\ <!> (!) (!)
:-? :-? :\ :\ >:> >:> |) |)
:-( :-( :-) :-) B-) B-) :-)) :-))
;-) ;-) |-) |-) (./) (./) {OK} {OK}
{X} {X} {i} {i} {1} {1} {2} {2}
{3} {3} {*} {*} {o} {o}
]]>

Also, you can add any image of your theme img folder by the Icon macro.

Example	Result
`<<Icon(admon-caution.png)>>`
`<<Icon(admon-important.png)>>`
`<<Icon(admon-note.png)>>`
`<<Icon(admon-tip.png)>>`
`<<Icon(admon-warning.png)>>`
`<<Icon(alert.png)>>`
`<<Icon(angry.png)>>`
`<<Icon(attach.png)>>`
`<<Icon(attention.png)>>`
`<<Icon(biggrin.png)>>`
`<<Icon(checkmark.png)>>`
`<<Icon(devil.png)>>`
`<<Icon(draft.png)>>`
`<<Icon(frown.png)>>`
`<<Icon(icon-error.png)>>`
`<<Icon(icon-info.png)>>`
`<<Icon(idea.png)>>`
`<<Icon(moin-attach.png)>>`
`<<Icon(moin-bottom.png)>>`
`<<Icon(moin-conflict.png)>>`
`<<Icon(moin-deleted.png)>>`
`<<Icon(moin-diff.png)>>`
`<<Icon(moin-edit.png)>>`
`<<Icon(moin-email.png)>>`
`<<Icon(moin-ftp.png)>>`
`<<Icon(moin-help.png)>>`
`<<Icon(moin-home.png)>>`
`<<Icon(moin-icon.png)>>`
`<<Icon(moin-info.png)>>`
`<<Icon(moin-inter.png)>>`
`<<Icon(moin-new.png)>>`
`<<Icon(moin-news.png)>>`
`<<Icon(moin-parent.png)>>`
`<<Icon(moin-print.png)>>`
`<<Icon(moin-raw.png)>>`
`<<Icon(moin-renamed.png)>>`
`<<Icon(moin-rss.png)>>`
`<<Icon(moin-search.png)>>`
`<<Icon(moin-show.png)>>`
`<<Icon(moin-subscribe.png)>>`
`<<Icon(moin-telnet.png)>>`
`<<Icon(moin-top.png)>>`
`<<Icon(moin-unsubscribe.png)>>`
`<<Icon(moin-updated.png)>>`
`<<Icon(moin-up.png)>>`
`<<Icon(moin-www.png)>>`
`<<Icon(moin-xml2.png)>>`
`<<Icon(moin-xml.png)>>`
`<<Icon(ohwell.png)>>`
`<<Icon(prio1.png)>>`
`<<Icon(prio2.png)>>`
`<<Icon(prio3.png)>>`
`<<Icon(PythonPowered.png)>>`
`<<Icon(redface.png)>>`
`<<Icon(sad.png)>>`
`<<Icon(smile2.png)>>`
`<<Icon(smile3.png)>>`
`<<Icon(smile4.png)>>`
`<<Icon(smile.png)>>`
`<<Icon(star_off.png)>>`
`<<Icon(star_on.png)>>`
`<<Icon(thumbs-up.png)>>`
`<<Icon(tired.png)>>`
`<<Icon(tongue.png)>>`

For more information on the possible markup, see HelpOnEditing.

Markup	Display	Markup	Display	Markup	Display	Markup	Display
`X-(`	X-(	`:D`	:D	`<:(`	<:(	`:o`	:o
`:(`	:(	`:)`	:)	`B)`	B)	`:))`	:))
`;)`	;)	`/!\`	/!\	`<!>`		`(!)`	(!)
`:-?`	:-?	`:\`	:\	`>:>`	>:>	`\|)`	\|)
`:-(`	:-(	`:-)`	:-)	`B-)`	B-)	`:-))`	:-))
`;-)`	;-)	`\|-)`	\|-)	`(./)`	(./)	`{OK}`	{OK}
`{X}`	{X}	`{i}`	{i}	`{1}`	{1}	`{2}`	{2}
`{3}`	{3}	`{*}`	{*}	`{o}`	{o}