Answer:
Die without me, never thank me. Walk right through me, never feel me. Always watching, never speaking. Always lurking, never seen. What am I?
I have a strong affection for belly buttons.
I am a protector. I sit on a bridge. One person can see right through me while others wonder what I hide.
I work when I play and play when I work. What am I?
I go up when the rain comes down. What am I?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?