You say 'bump'.

This may sound like a stupid question but how do you bump the thread?

erm grizzly couldnt you of cut that down to the part in bold?

Should thank Sour, he beat me to it.
(But at least I'm spreading the rules. )

15. POSTING - ALL CAPS, LARGE FONTS, EXCESSIVE PUNCTUATION, BUMPING, QUOTES
TALKING IN ALL CAPS online indicates that you are shouting. It's a very aggressive way to post and it doesn't come off as being very friendly. Moderators, at their discretion, can edit or delete any topics or posts that use ALL CAPS. Same thing goes for bolding an entire post or underlining or colouring your posts.

Large fonts should be used for emphasis only. Please do not use large fonts (font size 4+) to write an entire post.

Excessive use of punctuation is not encouraged! Thread titles and posts may be edited to remove extraneous punctuation.

Bumping a thread means to post an innocuous reply to a thread in order to "bump" it to the top of the thread listing. Excessive bumping will not be tolerated. Bump a thread only once per 24h.

Excessively large quotes may be removed by a moderator. If you are responding to a specific portion of someones post, please edit the quote to include only that particular portion.

site-forum-rules-guidelines-t1040.html

You are allowed to bump your thread once per day.