Sew
You take some thread, put your scooter up to a signpost, and sew them together. You don't have a lock, so sewing your scooter up to the signpost to keep it safe is all you can think of.
ほう
ぬ
None
You usually only sew at home (ほう), so this is a big exception for you. You're usually worried that if you sew in public people will judge your stitches, so this is a big step for you!