You climb up the lighthouse and turn the light to the left, scaring the gull away. Then you can put the clapper back in and ring the bell.
To get the lobster:
Catch the old photo blowing near the lighthouse.
Swap it for Scuba gear at the Photo shop.
Dive at Puffin Point to recover Cap'n Salty's lost lobster trap.
To get the seagull away, you have to turn the lighthouse light. Use the lobster.
you dont
The bell on Big Nate Island on poptropica is located on the top school building. To reach it when you have the clapper, you need to get rid of the seagull there. (see related question)
you never give the lobster to the seagul you shine the light houses light to the seagull and the lobster you give to the man
There are no seagulls to ride on (as of yet) on a Poptropica island. Gulls appear on Big Nate Island, Ghost Story Island, and Wimpy Boardwalk.
get the lobster and the go to the top of the lighthouse and there is a light thing use the lobster and it would turn and chase away the seagull
The seagull has to be chased from the bell tower. (see related question)
No. Climb to the lighthouse light and use the lobster like pliers to turn the light. When it shines to the left, it scares off the seagull from the school's bell tower.
Use the lobster to crank the lighthouse light. Turning it left will scare the seagull from the school's bell tower.
Once you have the lobster, climb the lighthouse and use it to turn the light to the left, scaring away the bird.
The only times you are in competition with Nate are the Jet Ski Race and the Hangman game. For the jet ski, point your cursor well ahead of your character and jump when you near an obstacle. You also should avoid the dropped seagull eggs. In the hangman game (Go To Jail), the word will always be one that has some connection to the island. (see related question)
You do not play as Big Nate. He accompanies you around most of the island, and races you on the jet skis.