There si no difference in pronunciation between this two words. You can understand with the context of the sentence. ex: Je peux voir (peux= forme conjugué du verbe pouvoir) Il en reste un peu (peu= petite quantité de quelque chose)

There is no difference in pronunciations. Context will always differentiate between these two words.

Meci

Same pronunciation. As long as you don't say "pou"..haha..