People aren't polyamorous, relationships are. Descriptors of relationships describe a moment in time (like the temperature, time of day or your age). Sometimes more than one style applies to a relationship at one time. Ex: Some people in poly relationships also swing with one or more of their partners.

Every human being who experiences sexual and/or romantic attraction can and (at some point in their lives) will feel it for more than one person at a time. That's just being human and not in any way related to whether your relationship is agreed to be polyamorous or monogamous. Monogamy is simply an agreement not to act on these feelings. It exists and requires active opt/in and agreement because being in a relationship doesn't stop sexual and romantic attraction to others. If it wasnt common, expected, and normal to be attracted to others while in a relationship, no one would have to promise monogamy (an agreement not to act on those feelings)

Polyamory is something you agree to and do

Its a relationship structure that allows everyone to have multiple romantic/sexual partners.

What makes you think you would be happy in a polyamorous relationship?

Good hints that it will work....

• A willingness to date from a pool of partners who already have partners
• A willingness to support your partners in cultivating romantic/sexual relationships  that dont involve you and with any gender

Information that is irrelevant to whether you will be happy with or good at Polyamory

• Getting crushes on multiple people
• Feeling attracted to others while in a relationship that is agreed to be monogamous
• A desire for group sex
• A desire for multiple partners for yourself
• Understanding that when everyone has multiple partners, you can't be the number one priority/primary partner for everyone you date.

Hints that you are in a poly relationship

• Everyone involved agreed to polyamory