6. Undesirable behaviour e.g Jumping (3 steps).

1. Know what you want your dog to behave.
e.g. sitting instead of jumping.

2. Don't reward the dog for undesired behaviour.
Need leashes, tehters, crates and verbal consistency to make sure nobody rewards the dog for jumping.

3. Reward only the behaviour you want. Make sure all friends and family members know about that.

Regarding 2,

If dog jumps and touches you, or make eye contact, you push her down, knee-in-the-chest punishment (invitation to play rough games) encourages misbehaviour.
Step away, say a cheerful "Oops" will not reward misbehaviour.

Tethers. Plastic-coated cable 5 feet long, sturdy clips on both ends. Or use a leash if dog does not gnaw through nylon or leather.
Set up tether stations throughout the house. Clip the tether around the leg of a heavy piece of furniture, screw eyebolts into beams or studs. Put tether with wood block under an interior door and close the door.

Tether near the front door. Guest comes. Clip dog to tether. As guest enters, hand them a few treats. Ask them to greet your dog. When she sits, feed her the tidbits.

When go to living room, tether her again. Repeat so she does not jump on visiting laps or feast on kitchen counters.

Crate her in a quiet room during party time. If good manners, can join the party later.