TIP #1: TEACH ATTENTION
If we don't have our dog's attention it doesn't matter what we say or how we say it, the dog probably isn't going to listen. Teach your dog to respond to his name by pairing it with really good stuff like treats or play, and never use your dog's name in a negative way. A Look or Watch Me cue also teaches your dog to turn his focus towards you.
TIP #2: MANAGE THE SITUATION
Dogs do what works. If jumping up gets her the attention she seeks, she will do it again. If chewing relieves stress, anxiety, or boredom you can bet it will continue. One of the keys to changing behavior is managing the situation. If you know your dog is going to jump at strangers have her leashed so she can't, then reinforce her for having 4 feet on the floor. If she likes to chew, redirect her from that table leg and reinforce her choice to chew on dog-appropriate toys. By setting her up for success you are removing the chances of her misbehaving while increasing the opportunities to be reinforced for good behavior.
Jeff Dentler, CPDT-KA, IAABC-ADT, FFCP, CTDI