Is the sign for "trip" the same as "travel"?
Yes, they are very similar and often use the same bent "V" handshape. However, "travel" is sometimes signed with a larger, more repetitive motion, or occasionally with both hands alternating to show extensive wandering.
Can I use this sign to mean tripping and falling over?
No, this sign specifically means a journey or vacation. If you want to sign "trip" as in stumbling over an object, you would use a different sign that visually shows a person's legs hitting an obstacle and falling.
Does the size of the circle I make matter?
It can! In ASL, you can modify signs to add meaning. Making a larger, more exaggerated circular motion can imply a very long, far, or extensive trip, while a quick, small circle suggests a short getaway.