Thanks for your answers!

I was wondering : I have some blue tape in roll form but I strictly don't know how to use it, it doesn't seem to stick and I don't get how to take off the paper from the tape without battling and getting the tape damaged and unusable once I've succeed. I really would like to know how to use it as I don't have any tape pieces left and it is going to take a week at least before I receive them.
And for the glue, I have No Tape. It is so messy that I'm just scared to use it again (the cap is full of glue). Does anyone use it and have a piece of advice to keep it clean?

Thank you again for answering.