Nowadays I'm learning English in British Council (of course that's in Seoul) and this term is going to end today's evening. 
It was very good time to arrange my bad english skills and the teacher was so cool, as even I didn't know of passed time when i was in the class. Thus I'd like to give a gift to him as a meaning of thanks but I have no idea what kinda gifts he likes. 

If you were him, what would make you pleased? He is a british guy, looks about 35 years old, and not able to speak Korean at all.