and while you are there it can't do any harm to learn the two most important words in Welsh:
diolch (thank you)
dafad (sheep)
It is also good to know that word stress in Welsh is nearly always on the one by last syllable and that teachers of Welsh pronounciation wear umbrellas in the class.
You would maybe even like to learn more but unfortunately the locals are either too friendly or too secretive and they hide their Welsh conversations from foreigners, so you actually never hear the language naturaly used.