I take a text layer and add a bunch of effects to make it look like a tweet. This technique creates a background for the text, adds rounded corners and an outline. To add the Twitter logo, I use Auto-trace to convert the bird into a mask, before using an expression to anchor it in place next to the text.
Expression
//input variables – pickwhip tPath to your path and offsetPos to your null or expression controller
var tPath = mask("Mask 1").maskPath;
var offsetPos=effect("Circle")("Center");
var tPoints=[]; var InTan=[];
var OutTan=[];
var mPos=[offsetPos[0]-transform.position[0]-45,offsetPos[1]-transform.position[1]+10];
var tClosed=tPath.isClosed(); for(i=0;i < (tPath.points().length);i++){
tPoints.push([tPath.points()[i][0]+mPos[0],[tPath.points()[i][1]+mPos[1]]],);
InTan.push([tPath.inTangents()[i][0],[tPath.inTangents()[i][1]]],);
OutTan.push([tPath.outTangents()[i][0],[tPath.outTangents()[i][1]]],);
}
createPath(tPoints, InTan, OutTan,tClosed)
var offsetPos=effect("Circle")("Center");
var tPoints=[]; var InTan=[];
var OutTan=[];
var mPos=[offsetPos[0]-transform.position[0]-45,offsetPos[1]-transform.position[1]+10];
var tClosed=tPath.isClosed(); for(i=0;i < (tPath.points().length);i++){
tPoints.push([tPath.points()[i][0]+mPos[0],[tPath.points()[i][1]+mPos[1]]],);
InTan.push([tPath.inTangents()[i][0],[tPath.inTangents()[i][1]]],);
OutTan.push([tPath.outTangents()[i][0],[tPath.outTangents()[i][1]]],);
}
createPath(tPoints, InTan, OutTan,tClosed)
