Right, here we go

The great thing about carpet repairs is that you can just get any old bits of carpet and practice away at your heart's content, no need to put yourself under pressure in a live situation until you're confident.
This is the sort of kit you'll need. You'll probably recognise most of the stuff here, i.e.the syringe, adhesive and different scissors.
On the left, yes that is a dog comb! Useful for separating tufts apart. Next to that is a curved pair of forceps which are used to pull tufts out; you have to be careful if you're harvesting fresh tufts with these, not to shred them - grip them as low down as possible.
Next to the forceps are a pair of napping shears. These are used to trim down freshly installed tufts, by resting the half-moon part on top of the surrounding carpet to get the right height. Tip - make several trims, working down to height rather than one trim too low!
At the top right is a retufting needle, that one's quite dainty but is a comfy size for tufted carpets. You can get beefier ones for heavy woven backings. You'll see the thread attached to it in a loop, as Daryl described above. You do get a problem with the thread snapping sometimes, normal sewing cotton is pants, this is quite strong stuff, god knows where it comes from, I stole it out of someone else's kit

The angled tweezers are very useful for bedding tufts into an adhesive bed, they're no good for gripping anything firmly though.
And underneath it all is a bit of tufted carpet I glued to a board, to practice on

Some other handy things not pictured are:
> Masking tape (used to hold back surrounding tufts like in the photo below. carefully wipe the tufts it was stuck to with a little bit of solvent on a cloth, to avoid leaving any sticky residue that may turn black.)
> A desk lamp (you need lots of light on the work area, don't rely on the ceiling lights in the room you're working on)
> A hairdryer (to help start the curing process on latex adhesive, or to dry off the work area if you've had to clean it first.)
> Extension lead (the cables on your lamp and hairdryer may not be long enough)
> Clean dust sheets to cover the carpet where you are working and put your tools down on
Get yourself kitted out and get practising! Just shout if you want any more info about repair techniques.
In case you wanted a bigger view, a slightly larger photo of the tools is here:
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