Similar to "Notice":
General Perception:
* Observe
* Perceive
* Detect
* Recognize
* See
* Discern
* Appreciate
* Realize
* Acknowledge
* Identify
* Spot
* Catch sight of
More Formal:
* Recognize
* Identify
* Apprehend
* Ascertain
* Determine
* Cognizant of
Informal:
* Spot
* See
* Check out
* Take note of
* Pick up on
Similar to "Welcome":
Greeting & Hospitality:
* Greet
* Receive
* Accept
* Embrace
* Entertain
* Hospitable
* Gracious
* Friendly
* Cheerful
* Hospitably
* cordially
Positive Attitude:
* Accept
* Embrace
* Appreciate
* Favor
* Encourage
* Delight in
* Look forward to
* Glad to see
* Happy to have
* Eager to see
More Formal:
* Receive
* Accept
* Accommodate
* Extend hospitality
Informal:
* Glad to have you
* So good to see you
* Happy to see you
* Welcome aboard
* Feel at home
You can choose the best word depending on the context and the tone you want to convey.