POLL: Do you sign credit card transactions?

Do you sign your actual signature or just doodle something?
Does your behavior differ for touchscreen vs paper receipt?

I go first:

I doodle something complex (not my actual signature) on paper receipts. On touchscreens, I draw a horizontal line.

I always sign my name

my name is a squiggle

if it's a touchscreen, I will draw a smiley face

i used to draw something stupid lately i just write my first name

I write a squiggle but it's the same squiggle.  The purpose is to see the squiggle later in a courtroom and attest "yeah I made that."
I have to sign for packages at the Post Office because I order books often.