If you can make cards for the special people in your life, you should be able to make some gift tags as well. You'll need some tools. But if you don't have them, it is ok. Stickers work too. If you are just beginning, it is always a good idea to start small and simple.
You can use a punch to make your tags,
or buy blank tags at your favorite craft store.
I go either way. It depends on what shape and size I need.
A small heart shape punch helps too.
Or a double hole punch that will allow you pass a ribbon through for the effect above.
Stamps can always be used. I used colored pencils to color my little bear.
The important thing is to use your creativity, imagination and a good dose of love for the person you are giving the gift.