If you are meeting as a local delegation, pick a spokesperson. Introduce yourself and your party to the office receptionist or assistant. Establish eye contact with the legislator and staff. Speak directly to each of them and treat them as a team. Don't waste time with small talk.
Time is limited.
Get your facts straight. Stick to the issue. Be precise, not technical. If you don't know the answer to a question, offer to find out and send the information back to the office. Tie the issue to a local need.