Always walk the halls with a new single page of easily read and interesting information. If a legislator reads a few of these over the course of the session you've put a lot of information into the system. They can relate to many things. Make them entertaining. Use them when it feels right, when you have their attention.
Many legislatures have rules about what can be distributed outside of the mail to members.
Don't leave things on desks or in mailboxes without know the rules in your legislature. Ask the sponsor and any legislators who are particularly supportive to discuss the bill in their party caucuses. They may be able to find out whose with you, whose definitely not, and who are undecided. Check-in with legislators whose support you have, but spend most of your time on undecided legislators. On the day before or the day of Second Reading, pass out fact sheets to every legislator you can.