1. Carefully pick your advisor--Read their bios on the college's site and pick one who both rationally and emotionally intrigues you. Chat with him (or her, of course,) perhaps about his research. If it feels right, ask him to be your advisor. If not, thank him for the conversation, and try someone else.
2. Find out who the best teachers are. Ask the dept. administrative assistant--s/he has read all the student evaluations of all the professors. Or try sites containing student reviews of professors:
3. Adapt assignments to your career goal. Most professors don't mind your proposing an alternate term paper topic, fieldwork assignment, etc.
4. Be social. For example, throw parties for your fellow students. Invite your favorite professors. Whether or not they come, they'll be flattered.