Coffee Appreciation

Friend of mine has recognised my coffee-geekiness and bought me some Monin syrups.

I know for some this is sacrilege, but I thought it would be fun to give them a try. Just need to know when to use them though - do I just pour in a bit and then stir it in, or do I have to add it to the milk before frothing or what?

I know I can just do it any way, but if there's a proper way I'd rather do it like that.

And oh - that shop on eBay - coffee geek fail - they didn't even include any shots of the equipment there...

add it 1st so it stirs well into the coffee.
At the end of the day is flavoured syrup so i can't see it making that much difference. I may be wrong though, just my opinion :)